Émile targets women he believes are too depressed to go on living. As multiple victims fall to his suffocating white scarf, an inspector resorts to unorthodox methods to get him with the assistance of a potential victim.
Émile
Inspector Simon Dangret
Anna Carré
Le Chacal
Monique
Florence
The chief commissioner
Helen, lonely actress
The woman in silk
Claire, the prostitute
Ms. Elizabeth
Jeanne, the owner of the bar restaurant
Le passant offusqué