Talaash follows assessor Surjan Singh Shekhawat (Aamir Khan), who is tackling the unplanned end of a silver screen star Armaan Kapoor (Vivan Bhatena). As Shekhawat unfolds the queer case, he gets intertwined in a drama that has new to it than meets the eye. Meanwhile, his not public days suffers as he reels under the repercussions of an almost-broken matrimony with Roshni (Rani Mukerji), and comes face-to-face with his suppressed grief of behind his single child.