
Desperate to prove his father innocent of treason, a secretary arranges a clandestine assignation with his employer's wife in order to get the proof he needs. But the plan goes awry when he becomes implicated in her sudden death.

as Alan Herriot

as Sir Julian Weyre

as Lady Avril Weyre

as Judy Weyre

as Robb

as Effie

as Lord Carnforth

as Sir Arthur Harding

as Inspector Marsh

as Dr. Rudd

as Boxall

as Martin