Giorgio, Walter and Dario's dream is to own a boat. Meanwhile, they overcome boredom by inventing an endless series of jokes. Between the three and the rich boys in the area led by Fernando there is a strong rivalry that will become more acute with the arrival of the beautiful Karin, a young German with an ambiguous past.

A college student studying for an upcoming test attempts to calm his frazzled nerves by taking drugs, and experiences a series of vivid, erotic hallucinations. When a beautiful woman appears to teach him the secrets of sexual ecstasy, he begins to fear that he will lose her forever once the effects of the drug wear off.