It's decided on New Year's Eve organized by Brigitte Oulage will seduce her and finally kiss her. He has everything planned now or never because Brigitte organized a costume party in her parents' house. He has everything planned - except the presence at the party of a band of particularly stubborn parasites: an Alsatian ex-girlfriend who hangs on a manic-depressive police sergeant a drug addict in need a lovely Cuban in search of papers and many others who will do everything to prevent his business from seduction.