Brothers Michael and David Tremayne decide to steal the Crown Jewels from the Tower of London, not for criminal purposes, but to make themselves famous.
Michael Crawford
as Michael Tremayne
Oliver Reed
as David Tremayne
Harry Andrews
as Insp. Marryatt
James Donald
as Col. Gurney-Simms
Michael Hordern
as Sir Matthew
Daniel Massey
as Riggs
Gabriella Licudi
as Eve
Lotte Tarp
as Inge
Michael Goodliffe
as Lt. Col. Paling
Rachel Kempson
as Mrs. Tremayne
William Mervyn
as Uncle Edward
Freda Jackson
as Mrs. Pervis
