Tu Yaa Main follows the story of Avani Shah (Shanaya Kapoor), a social media sensation with 2.3 million followers known as Miss Vanity, and Maruti Kadam (Adarsh Gourav), a small-time creator who runs the modestly followed Ala Flowpara account. They come from vastly different worlds, but when their paths cross, sparks fly. Eager to grow his reach, Maruti pursues Avani for a collaboration—despite strong objections from her sister Tara (Amrutha Srinivasan), brother-in-law Vikram (Rajat Kaul), and manager Lyra (Parul Gulati). Against all advice, Avani agrees.What begins as a professional partnership soon turns into love. But reality hits hard: Avani lives in a lavish 10,000-square-foot home, while Maruti comes from a struggling neighborhood in Nala Sopara, near Mumbai. Still, they choose to give their relationship a chance and set off on a bike trip to Goa. When their bike breaks down, they seek shelter at a deserted scuba diving center in Maharashtra’s Konkan region—only to find themselves trapped in an abandoned swimming pool in a remote location. As if that weren’t enough, they are suddenly attacked by a crocodile. What follows is a gripping fight for survival that changes everything.