A London solicitor and a French detective investigate the mysterious death of an elderly woman suspected of being poisoned.
Michael Anderson | Director |
A.E.W. Mason | Novel |
Edward Dryhurst | Writer |
Vaughan N. Dean | Producer |
Gerald Crossman | Music |
Erwin Hillier | Director of Photography |
Edward B. Jarvis | Editor |
Robert Lennard | Casting |
Terence Verity | Production Design |
Thelma Orr | Script Supervisor |