Jean-Paul Belmondo plays Paul, a former womanizer who marries the head of the medical department's "unattractive" daughter Christine because he thinks attractive women can't be trusted and make poor wives. A car accident leaves him bedridden and he begins to miss his playboy days, when Christine's bombshell sister Martine arrives and Paul decides he must have her. He begins drugging Christine at night so he can sneak out to kill of Martine's many suitors one by one.
Young Berthe, deeply moved by a cinema screening of the notoriously sultry Le Dernier Tango à Paris, goes to the address where most of the action takes place, a building overlooking the Bir-Hakeim Bridge metro station. Reality suddenly seems to mimic fiction when she discovers not only an apartment advertised for rent, but also a man prostrate in a corner who seems to be waiting for her. Hoping for the same torrid embrace as in the film, she discovers that he is in fact preoccupied only by the apartment's defects. Attempting to embark on a passionate affair, she learns that the man suffers from libido problems.
