408. Trikon the Magician Part 1

KD arrives with the police commissioner to enjoy a magic show. During the show, the magician's assistant disappears while a doctor who went missing 30 years ago, reappears. KD is informed by the comissioner that Dr Prakash had murdered another doctor and gone into hiding 30 years before. But KD is baffled by Dr Prakash's appearance, as he hasn't aged in all these years.