The ending of The Bird with the Crystal Plumage (1970), directed by Dario Argento, is a quintessential example of the giallo genre's blend of psychological intrigue and shocking twists. Here's a breakdown of the key events and their significance: In the climactic sequence, Sam Dalmas (Tony Musante), an American writer living in Rome, finally unravels the mystery of the serial killer terrorizing the city. Throughout the film, Sam has been haunted by his memory of witnessing an attempted murder at an art gallery, where he saw a woman being attacked by a man in a trench coat. However, as the story progresses, it becomes clear that his recollection of the event is flawed. The pivotal twist reveals that Monica Ranieri (Eva Renzi), the woman who appeared to be the victim in the art gallery, is in fact the killer. Her husband, Alberto Ranieri (Umberto Raho), has been helping her cover up her crimes by staging murders and attempting to silence Sam when he got too close to the truth. ...