The Birds, the Bees and the Italians is an omnibus film consisting of three stories set in Italy. The film delves into various comedic and romantic situations, including gossip, adultery, and group of friends dynamics. It explores the themes of relationships, marriage, and sexuality in a lighthearted and comedic manner.

Antonio Scaparro (Toto) is obsessed for women. He invents his own way to hide from them - in the attic of his house.

In this unusual offbeat black comedy directed by Ugo Tognazzi, Giuseppe (Tognazzi) is a middle-aged industrialist obsessed with gadgets. When his nose starts to whistle uncontrollably, he checks into a clinic to resolve the problem. What begins as a minor affliction worsens, and Giuseppe is placed on a different floor as his ailments multiply. The sicker he gets, the higher he goes up in the floors of the clinic, until he is near death's door.

Four comedic shorts explore quirky relationships and misadventures: a teenage girl's journey home, a self-serving babysitter, a husband confronting infidelity, and a wealthy woman's drunken escapades with her butler.

Carlo Rutelli falls in love with the beautiful variety singer Yvonne la Nuit, but his father opposes the wedding. World War I breaks out and Carlo is killed while Yvonne has a son, but on orders from Carlo's father, she is told he is dead. Her career descends and only Nino, an art partner, remains close to her and helps her earn her living by singing in taverns.

Through a series of scenes inspired by famous songs, various episodes of Italian life in the last fifty years are recalled.

In Paris, the dreaded Zagomar kidnapped the daughter of a scientist to force him to deliver his latest discovery: a machine that "blocks" over time. Macario, the assistant teacher, decides to confront this elusive bandit that lurks in the bowels of the city.