In the whimsical and musical world of Anurag Basu's vibrant imagination, a young detective with a peculiar stutter embarks on a globetrotting adventure to solve the greatest mystery of his life. Ranbir Kapoor stars as Jagga, a brilliant but shy teenager whose only clue to his missing adoptive father is a cryptic message from a far-off land. His quest leads him to team up with the spirited and often accident-prone journalist Shruti, played by Katrina Kaif, whose own ambitions become entangled in his deeply personal mission. Together, they navigate a colorful tapestry of eccentric characters, from a dubious politician to a mysterious informant, all while communicating their discoveries through infectious song and dance. This inventive comedy-mystery blends heartfelt romance with high-stakes intrigue, creating a uniquely cinematic experience where every clue unfolds with musical flair and every step brings them closer to a truth more astonishing than they ever imagined.