The mental breakdown of a guilt-ridden man provides the drama in this fascinating psychological profile starring Richard Attenborough as a scientist who can't live with himself after he accidently kills the brother of his fiancee.
After murdering his lover, cross-channel swimmer Joy Webster, Derek Bond attempts to do same to her other boyfriend, Sheldon Lawrence. John Ireland plays an Interpol detective who stems Bond's homicidal hijinks. Black Tide was produced by Monty Berman in his pre-Saint days.
American scientist Dr. Frank Smith is brought to Britain to help the C.I.A. There is a defecting East block scientist they want him to debrief. The commies are less than amused and set Dr. Smith up for a murder.
