The premise of KICK, first! On a train journey in Warsaw, a pretty psychiatrist, Shaina [Jacqueline Fernandez], meets Himanshu [Randeep Hooda], a police officer from India, for an arranged match. They share their pasts with each other.
Shaina shares the story of her ex-boyfriend Devi Lal Singh [Salman Khan], a guy who lived only for 'Kick'. She talks about his madness and their whirlwind romance, until one day he breaks up with her for a new kick and walks away, never to return. Himanshu tells her about his glorious escapades and that he has finally met his match - an intelligent thief.
What they don't know is that their stories have one thing in common - Devil. He returns back into their lives under a new guise of having lost his memory. Behind it all is a deeper mystery and an uncompromising mission...