When Lise's car bumps Antoine's bike, they recognize each other from a brief fling 20 years before while at the Sorbonne. He's now a professor of Greek; she's loathe to tell him she's a police inspector. A call interrupts their first dinner date: a Deputy of the National Assembly has been murdered. She has a suspect, another Deputy, and must track him while deflecting Antoine's eye from her vocation. All roads in the inquiry lead to Christine Vallier, the dead Deputy's mistress, a beguiling 22-year-old whose mother ran the Assembly's snack bar. When more deputies die and Antoine learns Lise's identity, she must act quickly solve the crime and save her future.

Antoine, a professor of Greek, and Lise, a police inspector, honeymoon in Greece. There they meet a young couple, Charles, an archaeologist, and Agnes, a dishy flirt. Charles unearths the lovely buttocks of a classical statue and is determined to donate it to the Louvre. Agnes wants to sell it and gets a handsome local sailor to take it for an appraisal. When the sailor is murdered, the police suspect Charles and arrest Antoine as his accomplice. Lise swings into action, but before she can clear the men, Agnes springs them from jail, and now Lise must help them elude the police, find the real murderer, and recover the statue fragment. More art goes missing. What is the statue's secret?

When Lise's car bumps Antoine's bike, they recognize each other from a brief fling 20 years before while at the Sorbonne. He's now a professor of Greek; she's loathe to tell him she's a police inspector. A call interrupts their first dinner date: a Deputy of the National Assembly has been murdered. She has a suspect, another Deputy, and must track him while deflecting Antoine's eye from her vocation. All roads in the inquiry lead to Christine Vallier, the dead Deputy's mistress, a beguiling 22-year-old whose mother ran the Assembly's snack bar. When more deputies die and Antoine learns Lise's identity, she must act quickly solve the crime and save her future.

The Lourmel couple are taking part in the final round of a TV game show: the wife has to answer questions; if she fails, her husband drives a racing car to make up the lost minutes. Moments before the start of the show, a phone call informs Lourmel that her six-year-old son has been kidnapped, and that the ransom is the amount to be won on the game show.