Boris Turganev (Murray) is a Russian scientist who has absconded from a Communist prison in an attempt to achieve a better life working for the British. As Boris struggles to make his superiors believe he is there to work and not to spy for the Russians, an office romance blossoms that could put his mission in jeopardy.

Reparto

Stephen Murray

Boris Turganev

June Thorburn

Leila

Alan Wheatley

Paul Skelton

John Carson

Richard Colman

John Bown

John Baxter

Jack Watson

Captain Foster

Ernest Clark

Dr. Pembury

Peter Gilmore

Tom Masters

Marne Maitland

Dr. Asafu

Ellen Pollock

Dr. Morrell

Hugh Morton

Sir Gilbert Saunders

Basil Dignam

Richard Horton

Victor Beaumont

Petrov

Hamilton Dyce

Airport Controller