This is one of the last good comedies Molinaro was able to make, before he got stuck in Cage aux folles-robotic entertainment. Pairing Lino Ventura and Jacques Brel was a wonderful idea: one is so dour and methodical, the other so emotional, helpless, a real loser.
The hotel scenes are very well set up; there is a claustrophobic feeling about the layout of the suites. The water seeping through the door into Ventura's suite from Brel's bathroom after the suicide attempt prevents Ventura from concentrating on assembling his rifle--very well handled by Molinaro. The clinic scene, with Ventura ending up in a strait-jacket is a marvelous four-way comic piece with Caroline Cellier and Jean-Pierre Darras joining the two principals.
Now, if someone will bring back La Mandarine (with an impressive Annie Girardot) and L'Homme pressé, two more great Molinaro pictures from the 70's, my happiness will be complete.