After a while, the killer who wears black fedora, gloves, and trench coat starts photographing unfaithful wives as they start having sex with their lovers and also killing them.
The New Zealand actress, Melanie Lynskey, is well-known for her role as Amy in the film Hello I Must Be Going and Rose in the television series Two and a Half Men.
Silvano Trinquili is having it off with his neighbour, whose husband is crippled, and when she's murdered, her husband stupidly falls down a flight of stairs and dies, which may be the most pointless random death in a giallo I've watched to date.