Jaal

Inspector Shankar (Biswajeet) is assigned to investigate the mysterious death of Sunder Singh (Sujit Kumar), whose ship wrecks on a stormy night. Sunder was off to marry Sheila (Mala Sinha), the daughter of his mothers (Nirupa Roy) childhood friend who had long died. Sheila was raised by her father, who dies of a heart attack when he comes to know of Sunders death. Sunders mother decides to take Sheila to live with her. In denial of her sons death, Sunders mother keeps doing various acts in madness.

She keeps serving food for Sunder, talks with his photos, and keeps feeling that her son has returned. Meanwhile, Shankar and Sheila fall in love. But in her madness Sunders mother starts preparations of Sunders wedding with Sheila. Sunders face-burnt body is found and the mystery continues whether his death was an accident or a murder.