A nuclear war specialist returns from a mission gathering data on Soviet communications and electronic warfare techniques in the Arctic Ocean to find that his flat has been broken into and mysteriously re-decorated.
Michael Petrovitch
as Patrick Armstrong
Philip Latham
as Ferdy Foxwell
Don Fellows
as Colonel Schlegel
Michael Gwynn
as Dawlish
Tessa Wyatt
as Sara Shaw
Derren Nesbitt
as Colonel Stok
Nicholas Parsons
as Ben Toliver
Bernard Kay
as Commander Wheeler
John Forgeham
as Security Guard
Stewart Bevan
as Sylvester
Toby Robins
as Helen Schlegel
Nigel Plaskitt
as Mason
