Amnesiac husband: Part 1 - S1.E358

A car carrying a couple meets with an accident. The husband undergoes face surgery as it is badly scared. Also, his memory is lost. After the husband’s face is healed completely, he is taken under arrest on account of Drinking and driving. KD takes this case up as wife and everyone around tells him that husband never used to drink. The case escalates when it is found that wife had an extra marital affair with a man called Rajat, who is also missing since the same day they met with the accident. The troubles deepen for the husband and story takes a turn when Rajat’s body is found, but everyone is shocked to see that it has the same face as the husband! How would KD crack the case ?