Interspersed with humour, this relationship drama follows the twists and turns in the life of Balabhaskaran (Jayaram), who suffers from sleepwalking. He walks long distances in the night and many mishaps happen during this. He is blamed for a murder by his friend Johnie (Madhupal) who wants to extort some money from Balabaskar by blackmailing him. Balabasker's father marries him off to Chandrika in the hope that this will help him to get over his sleepwalking.
Later, Balabaskaran is involved in an accident and on his death bed tells Chandrika that he was living the life of a womanizer before marriage. Luckily, or unluckily, Balabaskar survives but Chandrika is not willing to forget what he told her about his previous life. This creates problems in their married life. Will he ever succeed in winning back Chandrika's love and trust?