A lovely young nurse finds herself framed for the murder of a hospital patient who died after she administered an injection.

Bourvil
as Albert Gaudet, investigating judge

Marina Vlady
as Catherine Dupré

Virna Lisi
as Gina Bianchi, nurse

Pierre Brasseur
as Charles Cassidi, lawyer for Mrs. Dupré

Umberto Orsini
as Maître Philliet, lawyer for Gina Bianchi

Mony Dalmès
as Mrs. Marjorie, brothel keeper

Jacques Monod
as Prosecutor Magnin

Jacques Mauclair
as Georges Boisset, Mrs. Dupré's neighbor

Jean-Loup Philippe
as Gina Bianchi's ex-boyfriend

Robert Vidalin
as President of the assize court