Alida Valli appears but sparingly in this, but she does steal the scenes in an otherwise rather hammily performed plod-thriller. It's all centred around "Julie" (Rosemary Dexter) who is perplexed about the disappearance of her psychiatrist boyfriend. She doesn't want to involve the authorities, so alights on the dubious "Frank" (Adolfo Celi) and that leads her to a beautiful seaside palazzo inhabited by an eclectic group of misfits. Almost immediately after she arrives, the guests start dropping like flies. Is she safe? Is she the culprit, even? Well, we have to wait for the fuse on this to…