The female protagonist is a governess in a house inhabited by three middle age brothers. In one of the first scenes of the film, one of them makes continuous sexual advances despite her clear disinterest. He then develops an obsession with her, sexually harrasses her at multiple occasions, and writes her anonymous obscene letters throughout the movie. The two other brothers also develop a perverse relationship with her, and she progressively decides to deal with it by playing along. In the final sequence of the film, after she rebuffed them all, one brother attempts to rape her, in presence of the rest of the household. After a brief relief (she is fakingly told to leave the estate), she is violently grabbed, pinned down by the three brothers and raped on-screen, before being killed.