When Francis and Douglas Oberon learn that their late grandmother has bequeathed the family fortune to distant cousin Toni, they immediately start plotting to get their hands on the money. They dream up a plot whereby they cannot fail to acquire a comfortable future; the lovely Toni must either be murdered, or married...
Bob Monkhouse
as Francis Oberon
Alfred Marks
as Douglas Oberon
Hattie Jacques
as Miss Richards
Anna Karina
as Toni Oberon
Dennis Lotis
as Gilbert
Clive Dunn
as Chemist
Peter Butterworth
as Dr. Fletcher
Graham Stark
as Arnold
Hugh Lloyd
as MacDonald, the Solicitor
Harry Locke
as Stationmaster
Pat Coombs
as Lady on Station Platform