Thadam (transl. Trail) is a 2019 Indian Tamil-language crime thriller film written and directed by Magizh Thirumeni. Produced by Inder Kumar, the film stars Arun Vijay in a dual role along with Vidya Pradeep, Tanya Hope, and Smruthi Venkat. The music was composed by Arun Raj, with cinematography by Gopinath and editing by N. B. Srikanth. In the film, police officers try to solve a murder case involving lookalike suspects arrested on the basis of a pictorial evidence.