A rich older man dies during a massage (you see, uh--never mind). His young widow (Lucrezia Love) decides she needs some male help in managing her deceased husband's estate (for some reason she doesn't ask the family lawyer who she spends all her time rolling around in the hay with), so she summons her younger step-brother to come stay with her and her "little stepdaughter" (Gloria Guida). Of course, Guida's character ends up being attracted to her new "uncle" and plots to get "his bird in her bush" by, among other things, arranging for him to witness a steamy lesbian encounter between her and a friend in a, uh, steam room. To resist this temptation, the "uncle" marries Guida off to another guy while he in turn marries her friend, but they still can't resist each other.

Eine Schülerin verliebt sich in ihren jungen Stiefonkel, doch erst nachdem beide mit anderen Partnern verheiratet sind, finden sie zueinander.

Annunzita, al quedarse viuda, hace venir de Sicilia a Antonello, su hermano, para vivir con ella, pues no quiere seguir sola en la gran casa con Elena, su hijastra. Elena intenta seducir a Antonello, quien trata de hacerse el desentendido, porque de lo contrario sería echado de la cómoda casa. Antonello arregla pués el matrimonio de la joven con Saverio, pero, en lugar de solucionar el problema, Antonello empieza a tener celos y enamorado de Elena trata de olvidarla casándose a su vez. Pero todo es inútil.