Indochina, 1936: Charlie Chaplin and his co-star and lover, Paulette Goddard, are on vacation in Asia following the release of the global superstar's silent masterpiece, Modern Times. Evading the press in Phnom Penh, he is inspired to work on a new film idea - imagining his iconic alter ego, the Tramp, in the colonial rubber plantations. But Charlie Chaplin's presence in the French protectorate has encouraged Cambodians to speak out for real against colonial exploitation and the authorities are nervous about his visit. As the middle-aged filmmaker grapples with his creativity and his conscience, a deepening friendship with a Cambodian comic actor and anti-colonial communist eventually forces him to choose between lending his voice to their cause or keeping silent. Fictionalised around real events, Charlot is a story about how an embittered Charlie Chaplin abandons his silent Tramp in order to find his own voice in the politically turbulent 1930s.