Dhayam () is a 2017 Indian Tamil-language mystery thriller film written and directed by Kannan Rangaswamy and produced by A. R. S. Sunder. Entirely shot inside a single room, the film stars Santhosh Prathap, Jayakumar, Aanchal Singh, Samaira Sandhu and Iraa Agarwal amongst others in leading roles. Featuring music composed by Sathish Selvam, cinematography by A. Packiaraj and editing by R. Sudharsan, the film had a theatrical release on 24 March 2017. Plot Eight people enter a room in a company for an interview for the post of CEO. The room has no windows, the walls are white, and there is a clock attached to one side. There are five men and three women. The men include one smart guy in white, one villain in full black, one coward who always bites his nails, one clairvoyant guy who always laughs like a fool, and one tall guy who wears a mask. The women include one lady in a saree, one in an office skirt suit, and one in jeans and a shirt. The company representative enters the hall and addresses that the former CEO committed suicide in the same room and is roaming as a ghost. The interview is simple: whoever among the eight candidates remains alive and sane after one hour will become the CEO. The timer begins. The evil guy makes fun of everyone and forces the tall guy to remove the mask, but he refuses. After 10 minutes, the lights suddenly go off. When they are back on, the tall guy is shown being hanged from the roof. They believe that the ghost kills people every 10 minutes, and they must work together to stay alive. The guy who always laughs suddenly begins to laugh hysterically and reveals that he can see ghosts and laughs whenever he sees one. After another 10 mins, the laughing guy is killed with a cut, then the coward dies. People suspect the evil guy, and the smart guy knocks him off. Now, the ladies and smart guy remain. Suddenly, the tall guy wakes up and reveals that he is a clone of the smart guy and his lookalike. The smart guy kills him with a gun obtained from a hole in the wall. Then, the evil guy becomes conscious and reveals that he is the assistant of the lady in the suit and they have come to the interview together. She