Overview
Stranger by the Lake is a 2013 French thriller and drama film written and directed by Alain Guiraudie. The film premiered in the Un Certain Regard section at the 2013 Cannes Film Festival where Guiraudie won the award for Best Director. The film also won the Queer Palm award, and was mentioned on multiple top-ten lists of the best films of 2014.
Plot
Franck is a regular visitor to a nude beach and the woods surrounding it, both of which are a popular cruising destination for gay men. He befriends Henri, an older man who seeks solitude at the beach after breaking up with his girlfriend, and Michel, a handsome man to whom Franck is instantly attracted.
One evening, Franck observes Michel drowning another man in the lake. Though terrified by what he has seen, Franck is unable to resist his attraction to Michel, and continues to pursue him. When the body of the drowned man is discovered and identified, a police investigator begins to question the men at the beach; Franck tells the investigator that he did not see anything unusual on the evening the man drowned. Franck and Michel's relationship progresses, though Franck becomes increasingly frustrated by Michel's refusal to meet him anywhere other than at the beach.
Henri, who has correctly intuited the events that have occurred over the past several days, warns Franck about Michel. When Franck goes swimming, Henri confronts Michel, and tells him that he knows he is the murderer. Henri leaves to take a walk in the woods, casting a glance back at Michel as he departs. When Franck returns, he discovers that the beach is suddenly deserted. He enters the woods, where he sees Michel walking away from a patch of tall grass. Upon entering the grass, he finds Henri, whose throat has been slit. Henri tells him that he got what he wanted. Franck, now being pursued by Michel, runs into the woods to hide. He sees Michel run into the inspector, whom he stabs in the stomach with a knife.
From Wikipedia (CC BY-SA 4.0).