Who is Anton Haliakov, who has just been abducted by the M.I.5 in London? A Soviet scientist apparently. But sixteen years before the man had another identity, Clément Tibère, and another nationality, French. So what led him to become Russian and to change identity? And why are the British secret services interested in him?
Lino Ventura
as Clément Tibère
Leo Genn
as Chief of M.I.5
Suzanne Flon
as Jeanne
Robert Hardy
as Assistant
Lea Massari
as Maria
Roger Crouzet
as Agent of the D.S.T.
Lucienne Legrand
as Bookseller
Bernard Dhéran
as M.Chat
Pierre Collet
as Mechanic
André Falcon
as Police Commissioner
Richard Marner
as
Robert Party
as Killer
