In a remote resort, newlyweds Apsara and her husband, Laalu, face a dangerous bet with the wealthy moneylender, Madhavan, who seeks to claim Apsara. Over the course of seven days, Madhavan attempts to seduce her through discussions of an ancient book on lust. Meanwhile, Apsara, determined to remain faithful, battles his advances. The outcome of the bet hinges on her ability to resist his manipulation and maintain her resolve.