Degree of Murder (1967)

When a young woman accidentally kills her ex-lover during a fight, she decides to conceal the body. Unfortunately, however, our anti-hero is less than honorable and becomes involved with not one but both of the men she finds to help her with his disposal at a construction site. And that’s just one of the problems this little case of murder and deception starts.
Volker Schlöndorff
Anita Pallenberg, Hans Peter Hallwachs, Werner Enke, Willy Harlander
tt0061992