The film follows Parthi, a café owner and animal rescuer in Theog, who is pursued by gangsters Antony and Harold Das who suspect him to be Antony's estranged son, Leo. It is the third instalment in the Lokesh Cinematic Universe and is inspired by A History of Violence. The film stars Vijay in the titular role, alongside Sanjay Dutt, Arjun Sarja, Trisha, Gautham Vasudev Menon, Mysskin, Madonna Sebastian, George Maryan, Mansoor Ali Khan, Priya Anand and Mathew Thomas. Leo (also marketed as Leo: Bloody Sweet) is a 2023 Indian Tamil-language action thriller film directed by Lokesh Kanagaraj and produced by Seven Screen Studio.