Two customs officers undercover, Marshal Remo Signorelli and Brigadier Riccardo Riva, try to stop Massimiliano Grilli, a master of evasion. On one occasion, Remo meets his old friend Fulvio who suspected he had an affair with his then girlfriend and now wife.

Four tales unfold in the Eternal City: While vacationing in Rome, architect John encounters a young man whose romantic woes remind him of a painful incident from his own youth; retired opera director Jerry discovers a mortician with an amazing voice, and he seizes the opportunity to rejuvenate his own flagging career; a young couple have separate romantic interludes; a spotlight shines on an ordinary man.