Source: DVD 576p 3,000 kbit/s. Arriving late one night in the seaside town of Seagate, Jim Medway (Derek Farr) heads for his estranged wife’s isolated coastal cottage. En route, he sees crooked businessman Charlie Durham (William Hartnell), running away down the precarious pathway. When Jim enters the cottage he discovers his wife's corpse. With the awareness his wife had been having an affair with Charlie, Jim embarks on attempts to blackmail the rich entrepreneur or frame him for murder.