一位缺乏经验的女演员受到邀请，在一部改编自俄国作家陀思妥耶夫斯基《群魔》的影片中出演角色。影片的导演是一个定居在巴黎的捷克移民，他控制了女演员的生活，很快，女演员无法分清表演和现实的界线。最终，她在现实中扮演了另一个捷克移民的死去的妻子，她因受到导演的操纵而卷入一桩政治刺杀阴谋...

The life story of famed French aviatrix Helene Boucher is detailed in Horizons sans fin (Endless Horizons). Giselle Pascal stars as Boucher, who is first seen in 1930, leaving her millinery shop behind in favor of the wild blue yonder. Though the world of aviation was still essentially an all-male one (despite England's Amy Johnson and America's Amelia Earhart), Boucher perseveres, eventually breaking all existing male and female speed and height records. A bit slow on the uptake in the dramatic scenes, the film soars (no pun intended) during the aerial sequences. Horizons san Fin was the winner of the Catholic Award at the 1953 Cannes Film Festival.