Dhuruvangal Pathinaaru

Dhuruvangal Pathinaaru
Theatrical release poster
Directed by	Karthick Naren
Written by	Karthick Naren
Starring	Rahman Anjana Jayaprakash
Music by	Jakes Bejoy
Cinematography	Sujith Sarang
Edited by	Sreejith Sarang
Production company	Knight Nostalgia Filmotainment
Distributed by	Dream Factory Venus Infotainment
Release date	29 December 2016 (2016-12-29)
Running time	105 minutes
Country	India
Language	Tamil

Dhuruvangal Pathinaaru (English: 16 Extremes), also known as D-16, is a 2016 Indian Tamil crime thriller film written and directed by Karthick Naren, starring Rahman in the leading role. Featuring a predominantly new cast and crew, the film went on to gain positive reviews from film critics as well becoming a profitable venture..It completed its 100 days on April 6,2017.

The film starts with a masked killer entering an apartment and murdering a young couple, Krish and Shruti one cold, rainy night in Coimbatore. Five years later, Deepak, the retired police inspector who lost his leg while investigating the case, receives a call from a friend. The friend's son is adamant on becoming a police officer. So, the friend sends his son to Deepak so Deepak can brainwash him into not joining the force since his parents feels it is too dangerous. When the son arrives, he asks Deepak to tell him how he became crippled. Deepak begins to narrate his story of the final case that robbed him of the job he loved.

Five years ago, on the same night of the murder, three college friends named Fabian, Melvin and Mano run over someone. Fabian decides to hide the body in their car boot and dispose of it the following day. However, they are stopped by the traffic police. They beat up the police officers and flee with the body in their car, returning to Fabian's home.

The next morning, Deepak receives a complaint that the dead body of a young man, later revealed to be Krish, has been found on the streets. A gun with Krish's fingerprints is found nearby, leading forensic officers to suspect it might be a suicide case. However, Gautham, Deepak's enthusiastic new constable theorizes that it might be a homicide. They learn of the three college students Fabian, Melvin and Mano who are the only ones who use that street to return home after a day of partying every night. They go to interview the boys. They find nothing suspicious but it is clear to them that the boys are hiding something.

Meanwhile, Deepak and Gautham visit the scene of another possible crime, which is the apartment from the beginning of the film. Shruti, who lives there alone, is found missing with traces of blood on the bedroom wall by her friend, Vaishnavi before dawn. After questioning her neighbours, Deepak and Gautham learn Shruti has a boyfriend who visits her apartment occasionally. Forensic officers soon learn that Shruti's blood type is O+, but the blood found in her bedroom is type B+. Deepak quickly remembers that Krish's blood is type B+ too. When Deepak shows Krish's photo to Shruti's next door neighbour, he says Krish looks like the boyfriend but he cannot be sure. Since Shruti's apartment is now a crime scene, Deepak arranges for Vaishnavi to stay with a neighbour for the night.