Urvasi is a rich man's daughter who falls in love with Mohan, a middle-class orphan. To gain her father's approval for their relationship, Mohan creates a fictional family to present to him.
Mohan enlists the help of Kuyili, a street dancer; Gandhimathi, a theatre actress; and Radha Ravi, an illicit liquor maker, to play his new family members. The movie follows the comedic misadventures that ensue as Mohan's fabricated family navigates their way into the wealthy household.
The film features Urvasi, Mohan, Kuyili, Gandhimathi, and Radha Ravi in key roles. Directed by an unspecified filmmaker, "Vai Pandhal" (1984) is a comedy of errors that explores themes of love, family, and social class.