# Iruttu (இருட்டு)
**Iruttu** (இருட்டு, "Darkness") is a 2019 Indian Tamil-language horror thriller film directed by V. Z. Durai, starring Sundar C as a police inspector who investigates a series of unexplained deaths after taking charge of a hill-station police station.[1](https://searchott.com/movies/iruttu) It was released in theaters on 6 December 2019 and later streamed on Sun NXT.[1](https://searchott.com/movies/iruttu) • [2](https://filmibeat.com/tamil/movies/iruttu/ott.html)
| Key fact | Detail |
|---|---|
| Release | 6 December 2019 (theatrical, India)[1](https://searchott.com/movies/iruttu) |
| Director and writer | V. Z. Durai (director and screenwriter); dialogues by Indra Soundar Rajan[3](https://www.rottentomatoes.com/m/iruttu) • [4](https://www.nowrunning.com/movie/23199/tamil/iruttu/cast-and-crew/) |
| Lead cast | Sundar C, Sai Dhanshika, Sakshi Chaudhary, with Vimala Raman, VTV Ganesh, Yogi Babu, and Shaji Chen[1](https://searchott.com/movies/iruttu) |
| Genre | Horror, thriller, drama[1](https://searchott.com/movies/iruttu) |
| Runtime | 133 minutes (2h 13m); some platforms list 131 or 132 minutes[1](https://searchott.com/movies/iruttu) • [5](https://www.jiotv.com/full-movie/iruttu/86f06050471c544d9b4d60f11824603e) |
| Certification | UA in India (Filmibeat lists U)[1](https://searchott.com/movies/iruttu) • [2](https://filmibeat.com/tamil/movies/iruttu/ott.html) |
| Music | Girishh Gopalakrishnan (Girishh G)[4](https://www.nowrunning.com/movie/23199/tamil/iruttu/cast-and-crew/) |
| Streaming | Sun NXT; listed on Airtel Xstream Play via Sun NXT[1](https://searchott.com/movies/iruttu) • [6](https://www.airtelxstream.in/movies/iruttu/SUNNXT_MOVIE_101025?showPlayback=true) |
## Spoilers
### Plot
A police officer takes charge at a police station in a hill station and investigates a series of unnatural deaths that seem impossible to explain.[1](https://searchott.com/movies/iruttu) In the opening situation described by the ICMB synopsis, a black figure is seen walking at noon in the hill station of Sigapurahali, and six men are killed by an unseen force in hora grass; the victims' neck bones are shattered but no handprint or murder weapon is found.[7](https://icmb.in/new_movie_post/iruttu-2019/)
Sundar C plays Chezhiyan, a police inspector transferred to the hill station, accompanied by his wife (Sakshi Choudhary) and a young daughter played by Baby Manasvi. The inspector initially dismisses paranormal explanations, but as evidence mounts he confronts the forces directly.[8](https://venkatarangan.com/blog/2019/12/iruttu-2019/) Rotten Tomatoes' synopsis describes mysterious and unnatural deaths taking place near a police station, with a new officer beginning an investigation to unravel the mystery.[3](https://www.rottentomatoes.com/m/iruttu)
## Cast and crew
The film is directed by V. Z. Durai, who also wrote the screenplay, with dialogues by Indra Soundar Rajan.[3](https://www.rottentomatoes.com/m/iruttu) • [4](https://www.nowrunning.com/movie/23199/tamil/iruttu/cast-and-crew/) The cast includes Sundar C, Sai Dhanshika, Sakshi Chaudhary, Vimala Raman, VTV Ganesh, Yogi Babu, Shaji Chen, and child artiste Baby Manasvi.[1](https://searchott.com/movies/iruttu) • [9](https://d1f72a6kha0tf8.cloudfront.net/iruttu) In the Tamil-language character list, Sundar C plays Chezhiyan, Sakshi Chaudhary plays Reggie Chezhiyan, Dhanshika plays Jinn Sila, VTV Ganesh plays Kulandaivel, and Vimala Raman plays Jin Shaika.[10](https://wiki1.tamilar.wiki/w/%E0%AE%87%E0%AE%B0%E0%AF%81%E0%AE%9F%E0%AF%8D%E0%AE%9F%E0%AF%81)
The technical crew includes cinematographer E. Krishnasamy, editor R. Sudharsan, music director Girishh Gopalakrishnan, art director A. K. Muthu, stunt director Dinesh Kasi, and sound designer Vijay Rathinam.[4](https://www.nowrunning.com/movie/23199/tamil/iruttu/cast-and-crew/) The production company was Screen Scene Media Entertainment, with Sundar Arumugam and Parthasarathi Gokulyadav as producers.[3](https://www.rottentomatoes.com/m/iruttu) The music label was Sony Music Entertainment, and the tracklist includes the song "O Variya" (3:38), sung by Shilpa Natarajan and Anjana Rajagopalan with lyrics by Mohan Rajan.[9](https://d1f72a6kha0tf8.cloudfront.net/iruttu)
## Production and release
The film was shot largely in Ooty: Moviebuff notes that 85 percent of the shooting was completed in a single 40-day stretch shoot there.[9](https://d1f72a6kha0tf8.cloudfront.net/iruttu) A September 2019 announcement gave an initial release date of 11 October 2019.[11](https://tamil.behindwoods.com/tamil-movies-cinema-news-ta/sundar-c-sai-dhanshika-iruttu-movie-release-on-october-4th.html) The trailer was released around 22–23 September 2019.[12](https://tamilcinetalk.com/iruttu-movie-trailer-2/) The film reached theaters on 6 December 2019.[1](https://searchott.com/movies/iruttu)
## Reception and commercial performance
The Times of India gave the film 2.5 out of 5 from critic Thinkal Menon, while readers rated it 3.5 out of 5; the review called it a serious horror film and "a relief for viewers" at a time of mindless horror comedies, praising a screenplay that stayed focused without unnecessary deviations.[13](https://timesofindia.indiatimes.com/entertainment/tamil/movie-reviews/iruttu/movie-review/72400351.cms) The Cinema Express review described Iruttu as "a horror film that takes the form of an investigative thriller," praising [Sai Dhanshika](https://www.edgepedia.org/sai-dhanshika)'s unconventional role and calling child artiste Baby Manasvi "the true revelation," while finding the police-procedural portions rushed and driven by coincidences.[14](https://www.cinemaexpress.com/reviews/tamil/2019/Dec/06/iruttu-movie-review-sundar-c-sakshi-choudharyvz-dhorai-15899.html) A Moviecrow critic review noted that the plot was not novel but that the first half had a nice build-up with tense moments and a focused screenplay.[15](https://www.moviecrow.com/movie/3950/iruttu-tamil-movie-review/review)
ICMB lists a budget of 70 million (7 crore) and box-office collections of 210 million (21 crore).[7](https://icmb.in/new_movie_post/iruttu-2019/) A Daily Thanthi report in October 2021 described the film as a success and reported that Sundar C and V. Z. Durai were reuniting for a new project, a second part to *Thala Nagaram*, which Sundar C would star in and produce.[16](https://www.dailythanthi.com/amp/story/news/following-the-success-of-the-film-dark-sundar-c--vz)
## Streaming
The film streams on Sun NXT, which carries it in Tamil in HD with subtitles.[1](https://searchott.com/movies/iruttu) • [17](https://ftp.sunnxt.com/tamil-movie-iruttu-2019/detail/101025) It is also available on Airtel Xstream Play through Sun NXT for users with eligible Airtel plans or an Xstream Play subscription.[6](https://www.airtelxstream.in/movies/iruttu/SUNNXT_MOVIE_101025?showPlayback=true) [JustWatch](https://www.edgepedia.org/justwatch) listed Sun NXT as the streaming option in the United States, with no free streaming options, as of its September 2026 check.[18](https://www.justwatch.com/us/movie/iruttu)
The OTT release date is reported differently: FilmiBeat gives 3 April 2020 on Sun NXT,[2](https://filmibeat.com/tamil/movies/iruttu/ott.html) while GudVibe lists 6 December 2019, the same day as the theatrical release.[19](https://www.gudvibe.app/movies/24862-iruttu-2019)
## References
1. [Iruttu (2019) — where to watch online, SearchOTT](https://searchott.com/movies/iruttu)
2. [Iruttu OTT Release Date: Streaming Platform, Satellite Rights, FilmiBeat](https://filmibeat.com/tamil/movies/iruttu/ott.html)
3. [Iruttu, Rotten Tomatoes](https://www.rottentomatoes.com/m/iruttu)
4. [Iruttu Cast and Crew, Nowrunning](https://www.nowrunning.com/movie/23199/tamil/iruttu/cast-and-crew/)
5. [Iruttu (2019) Full Movie on JioTV](https://www.jiotv.com/full-movie/iruttu/86f06050471c544d9b4d60f11824603e)
6. [Iruttu 2019 — Watch Full Movie Online in HD, Airtel Xstream Play](https://www.airtelxstream.in/movies/iruttu/SUNNXT_MOVIE_101025?showPlayback=true)
7. [Iruttu (2019), ICMB](https://icmb.in/new_movie_post/iruttu-2019/)
8. [Iruttu (2019) – Mangoidiots, Venkatarangan blog](https://venkatarangan.com/blog/2019/12/iruttu-2019/)
9. [Iruttu on Moviebuff.com](https://d1f72a6kha0tf8.cloudfront.net/iruttu)
10. [இருட்டு – தமிழர்விக்கி](https://wiki1.tamilar.wiki/w/%E0%AE%87%E0%AE%B0%E0%AF%81%E0%AE%9F%E0%AF%8D%E0%AE%9F%E0%AF%81)
11. [Sundar C Sai Dhanshika Iruttu Movie Release on October 11th, Behindwoods](https://tamil.behindwoods.com/tamil-movies-cinema-news-ta/sundar-c-sai-dhanshika-iruttu-movie-release-on-october-4th.html)
12. [Iruttu Movie Trailer, Tamil Cine Talk](https://tamilcinetalk.com/iruttu-movie-trailer-2/)
13. [Iruttu Movie Review: A decently engaging screenplay without any unnecessary deviations till the end, The Times of India](https://timesofindia.indiatimes.com/entertainment/tamil/movie-reviews/iruttu/movie-review/72400351.cms)
14. [Iruttu Movie Review: Zero cliches, full-on chills, Cinema Express](https://www.cinemaexpress.com/reviews/tamil/2019/Dec/06/iruttu-movie-review-sundar-c-sakshi-choudharyvz-dhorai-15899.html)
15. [Iruttu Tamil Movie – Critic Review, Moviecrow](https://www.moviecrow.com/movie/3950/iruttu-tamil-movie-review/review)
16. [‘இருட்டு’ பட வெற்றியை தொடர்ந்து சுந்தர் சி. – வி.இசட்.துரை மீண்டும் இணைந்தார்கள், Daily Thanthi](https://www.dailythanthi.com/amp/story/news/following-the-success-of-the-film-dark-sundar-c--vz)
17. [Watch Iruttu (Tamil) Full Movie Online, Sun NXT](https://ftp.sunnxt.com/tamil-movie-iruttu-2019/detail/101025)
18. [Iruttu streaming: where to watch movie online?, JustWatch](https://www.justwatch.com/us/movie/iruttu)
19. [Iruttu (2019) OTT Release Date, GudVibe](https://www.gudvibe.app/movies/24862-iruttu-2019)
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*Topic: Encyclopedia › Arts and culture › Screen and stage › Film and television › Films and standalone screen works › Individual films by title and year › Indian films (individual works) › Tamil films of the 2010s › Tamil horror films of the 2010s*
*Initially written Sep 17, 2026 · Reviewed: Sep 18, 2026; Oct 3, 2026; Oct 25, 2026 · Edited: Sep 18, 2026; Oct 3, 2026; Oct 25, 2026; Nov 1, 2026 · Last review: Oct 25, 2026*
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