MARTY SUPREME is the story of an expert table tennis player. The year is 1952. In New York, Marty Mauser (Timothée Chalamet) works as a shoe salesman at his uncle Murray’s (Larry 'Ratso' Sloman) shop. His interest lies in playing table tennis professionally. He's exceptional at the sport and needs
money to head to London to participate in the British Open. Murray owes him $700 and he refuses to part with the money to Marty, fearing that he would quit the job. Marty takes his pay at gunpoint from his coworker Lloyd (Ralph Colucci). In London, he defeats champion Béla Kletzki (Géza Röhrig) and convinces the International Table Tennis Association (ITTA) members to let him stay in the expensive Ritz Hotel. He bumps into yesteryear film actor Kay Stone (Gwyneth Paltrow) at the Ritz and seduces her. Things go downhill from here on. He fails to defeat Japanese player Koto Endo (Koto Kawaguchi) in the finals. Back home in New York, Marty is arrested for stealing from Murray and he escapes from the cops. While the cops are looking out for him, he gets into the bad books of a mobster, Ezra Mishkin (Abel Ferrara). He is short of money while his married friend Rachel Mizler (Odessa A'zion) is pregnant with his child and wants to begin a relationship with him. What happens next forms the rest of the film.