Maria is the wife of self-styled naturalist Mathius. Alas, Maria's husband spends more time with his beloved woodland creatures than with her. Yearning for a visit to the Big City, Maria leaves herself wide open for disillusionment and heartbreak.

Schomberg, an enigmatic psychiatrist runs a nursing home. He is forced to close his clinic and disappear to escape the police. But he wants revenge on his wife's lover, Didier Laurent, a former RAF fighter pilot. Didier meets a young trapeze artist, Paula, with whom he falls in love. The happiness of the two young people is disturbed by the assassination of Irene, strangled by Schomberg who casts suspicion on Didier. Fortunately for them Commissioner Ulysses knows the truth and forces Schomberg to commit suicide.