A Bay of Blood (1971)
A countess' murder leads to a string of more murders.
Countessa Federica Donati is wheeling around her mansion in the evening. She looks outside her window to the Bay and is then murdered when Count Filippo Donati puts a noose around her neck and kicks her wheelchair away. Fillipo hears a noise and goes to investigate and then puts a suicide note down next to Federica. He is then stabbed to death. Frank Ventura and Laura are in bed together when Frank playfully accuses Laura of being possessive and he tells her, he is going to the Bay to get a signature. Albert and Renata Donati are using binoculars to spy on Simon as he fishes and Paolo Fossati as he chases after an insect. Paolo and Simon have a philosophical discussion on the morality of killing. Frank calls someone and tells them that he expects that by tonight, they will own Federica's property and can start construction soon. Brunhilde, Denise, Duke and Bobby are driving their dune buggy when they drive to the Bay. Brunhilde runs to the Bay and Duke tries to get Bobby to go after her so that he can be with Denise. They find the remains of a club and go inside as Simon watches from outside.
Anna Fossati is reading her tarot cards when she gets up and stares at the old club and Federica's mansion. She calls for Paolo, who is talking to an insect he named Ferdinando. She tells him what the tarot cards revealed and dark clouds are hanging over the Bay, but he sarcastically ignores her. Paolo complains about Frank and his orgies and Anna accuses him of hating Frank and Fillipo, because he is jealous that they know how to enjoy life. Denise sees the swimming pool outside and Brunhilde tries to get Bobby to go to the Bay with her, but he leaves with Denise and Duke. Duke, Denise and Bobby walk over to Frank's house and find the door locked. Brunhilde walks to the Bay and starts skinny dipping. Duke breaks in through a window and finds Denise kissing Bobby. They go inside the house and start to dance and drink. Denise finds a bedroom and picks up a framed photo of Frank that is next to the bed. As Brunhilde is swimming her foot catches a rope. As she pulls at it, Filippo's body rises to the surface and she runs away. As she runs to find the others, she is chased by someone and then murdered when they slash her throat with a billhook.
Bobby hears something outside and walks to the front door and is killed when the person who killed Brunhilde strikes him in the face with the billhook. As Denise and Duke are having sex, the same killer takes a spear and shoves it through them. Anna has a premonition that something bad has happened and goes to tell Paolo, who is gone. Renata and Albert leave their Son and Daughter in their camper while they drive to meet with Paolo and Anna. As they drive, they pass by Frank, who stares at them. They park their car and go to speak with Anna and Paolo. Anna tells them that she doesn't believe Federica committed suicide. Paolo tells them that Filippo had his vices including women and gambling and had the idea to transform the Bay into a resort. They tell them about Simon, who is Federica's illegitimate son. Paolo shows them a quick path down to the Bay and they leave. Anna notices Paolo has a bandage on his hand and he tells her, he cut himself with his pen knife. Frank is leaving Simon's house as Renata and Albert walk down the path. Frank calls Laura and tells her that Simon signed all of the paperwork. Renata and Albert ask Simon about Filippo and Renata notices something squirming around on Simon's boat. She pulls back the canvas sheet and finds Filippo's body underneath with an octopus squirming around it. Renata starts to feel nauseous and Simon tells her and Albert about Frank's house nearby. They go inside Frank's house, and he hears them from the basement.
Renata tells Albert to get their vehicle while she stays in Frank's house. She goes to the bathroom and finds the bodies of Bobby, Duke, Denise and Brunhilde. Frank runs at her with an axe and she stabs him with a pair of scissors. As Albert is running back to the house, he runs into Anna and tells her that they found Filippo's body. Albert gets into the car and Paolo asks if he has seen Anna. Anna goes to Simon's home and as Albert parks the car, he sees Paolo running out of Frank's house. Albert finds Renata and she tells him to kill Paolo. Paolo runs home and as he is calling the police, Albert strangles him to death with the phone cord. Laura calls Frank's phone, but no one answers. Anna finds Frank lying on the floor and Renata cuts her head off with an axe. Albert finds Renata and she tells him that they only have to kill Simon and she gets the Bay. They see Simon carrying Filippo's body and then dumping it in the Bay. They see Laura drive up and Renata tells Albert that they will have to kill Laura too. Laura sees Frank and he tells her to get Simon. Simon accuses Laura and Frank of convincing Filippo to kill Federica. She tells him it was Frank's idea and that he wanted Federica dead, because she wouldn't sell the Bay.
During a flashback, a meeting occurs between Frank, Federica and Laura. During the meeting, Laura sees a diary entry written by Federica in which she says the Bay has become a desolate symbol of her marriage. As they leave, Laura steals Federica's diary and later reads entries to Frank. Frank comes up with the idea of having Federica killed by Filippo. In the present, Simon threatens to kill Laura and she throws a pot of hot water on his face. He grabs her and strangles her to death. He picks up the billhook and walks to the ruined club. In a flashback, Simon has a meeting with Frank after killing Brunhilde and the others and Frank tells him to put their bodies in a room of his house and in the morning, to dump them in the Bay. Frank offers to give Simon money if he brings him Federica's will. In the present, Simon realizes he was tricked and as he is walking to Frank's house, Albert impales him with a spear, killing him. Albert and Renata fish out Filippo's body from the Bay and then Albert finds the will in Frank's house. The lights go out and Frank attacks Albert. Albert kills Frank and he and Renata drive back to their camper. They celebrate successfully completing their plan and are shot dead by their Son. Their Daughter mentions how good Albert and Renata are at playing dead and then she and Son run to play at the Bay.