A serial killer is on the loose in Paris and he seems to be an american citizen working in the US embassy and being in the middle of a french-american economical affair.

Two Polish brothers arrive in Paris with dreams of becoming rich and famous, and sure enough, they are soon participating in some forgotten film festival as a producer and a director -- but will this get them anywhere?

The Cordier fight in family against the crime: the father is police captain, the son, investigating judge and the girl, a journalist.