Antoine Brisebard, a famous comedy playwright, is struggling with financial difficulties and is preparing to sell his country villa to an English couple.

But faced with certain ruin, Brisebard is preparing to do away with Jo once and for all, planning his deed under the guise of him trying to write the script for a crime play and consulting his friend, attorney Colas, for ideas of how to efficiently get rid of the body.

He finally takes up the offer of garden landscaper Tonelotti to erect a pavilion, whose foundation would provide the ideal hiding place for the corpse.

It was the 13th most successful film in France in 1971, far behind The Aristocats, at the top of the box office with 12,481,726 tickets sold in the country.

Jo was a small success for Louis de Funès, whose films usually attracted large popular interest.