Rathan Linga's Lock teaser out 

Director Rathan Linga of Attu fame is back with another violent thriller set in North Chennai. Titled Lock, the film stars Sudhir and Madhu Sri Harini in the lead. 

Lock is said to be based on the revenge of the lead character played by Sudhir. the film has music by Vikram Selva, cinematography by Nandhaa and editing by Mahendran Ganesan. 

Kavi Karko has written the lyrics of the songs and it has dance choreography by Bharathi.