The Sweet Sins of Sexy Susan (Austrian release: Susanne, die Wirtin von der Lahn, West German release: Die Wirtin von der Lahn) is a 1967 Austrian costume drama-sex comedy film directed by Franz Antel.

[1] Kurt Nachmann and Franz Antel created the lead character Susanne Delberg, a courtesan-actress, later madame and eventual social climber during and after the Napoleonic Wars, with inspiration from Wirtinnenvers, a well-known profane commercium song about the exploits of an innkeeper woman from the Lahn.

[citation needed] In the Kingdom of Westphalia, a drunken innkeeper woman (Ljuba Welitsch), just before her death, bequeaths her inn to Susanne Delberg (Teri Tordai as Terry Torday).

The tide turns when Susanne manages to seduce the student leader Anselmo (Mike Marshall) but through him, she finds herself in a conspiracy against the governor Dulce (Jacques Herlin) and the marching Grande Armée also involving her friend Ferdinand (Harald Leipnitz).

Although the heroine ostensibly dies at the end of the film, the commercial success of The Sweet Sins of Sexy Susan triggered the Frau Wirtin (or Sexy Susan) series of five films on later adventures of Susanne Delberg, all of them featuring Teri Tordai in the title role.