Mera Naam Joker is the story of Raju, considered the best circus clown ever. Ever since Raju's father died in an accident during his performance, Raju's mother had been repulsed by the circus. As luck would have it, Raju had a natural affinity towards the circus world. The film traces Raju's journey from his childhood to the day of his last performance. The first chapter is about an adolescent called Raju (Rishi Kapoor) and deals with his infatuation with his teacher, Mary (Simi Garewal). She gives him confidence in himself, and he discovers the world of femininity and desire. She is older than him. He attends her wedding in a state of false merriment. Mary's lessons nevertheless aren't lost: Raju comes to realise that he was born to make the world laugh, despite his own troubles. In a scene, Mary takes off her wet clothes in a bush by a lake and this is secretly eyed by Raju. Later, lying in bed in his house, Raju imagines that Mary is fully naked, the naked scene shows that a woman is waving her clothes by a lake and her nudity is shown from behind, one of her breasts is partially shown and buttocks are shown clearly. It is not confirmed that the nude scene was done by Simi herself or by a body-double. after his first heartbreak, the story follows adult Raju (Raj Kapoor) who has found work with Gemini Circus as a clown. His dream materialises! The circus is owned by Mahendra Singh (Dharmendra) who has understood Raju's potential and hires him. The circus hosts a visiting group of artists from Russia, and he falls in love with Marina (Ksenia Ryabinkina), the lead trapezist. Despite the language barrier they become close, and Raju half hopes that they might live together. But he faces heartbreak once again when the circus ends and Marina returns to Russia. It is in this chapter that Raju's mother dies during his performance, watching him perform the very stunts which caused her husband's death. In the final chapter, Raju has left the circus and wanders aimlessly. One day he meets Meenu (Padmini), an orphaned girl who has ambitions of becoming a famous actress. Meenu and Raju set up an association, start a small circus business and later move on to the theatre. They are quite successful, but their collaboration ends when she is offered a role in a film. She leaves him, and he realises she has used him in her pursuit of success. Raju always carries a clown doll which belonged to his father. Every time he falls in love, he gives away his beloved doll, only to see it come back to him. The doll is used as a metaphor for Raju's simplistic heart where there is room for everyone. At the end of the film, Raju is shown doing his final act, as promised to Mahendra. He invites the three ladies he was in love with, to watch his last performance. He also reassures the audience that he will soon be back with more to make his audience laugh again.