Edge of Madness is a 2002 drama film based on the short story "A Wilderness Station", written by Alice Munro.

Written by Charles K. Pitts and Anne Wheeler, the film is based on the life of a young woman (Annie) who confesses to the murder of her husband.

[1] Annie Herron is abused by her husband, Simon, whilst his brother, George, was seemingly helpless to intervene.

In 1851, Annie is living in an orphanage and is put into an arranged marriage to Simon, who takes her to a homestead which is still being built.

At night, Simon expects Annie to submit to his rough sexual advances, even raping her several times.

Simon's murder culminates these events, with Annie being locked up in the gaol, while a Detective, Henry Mullen, investigates.

Through flashbacks, we learn that George, distraught from witnessing how his brother treated Annie, kills Simon by hitting him in the back with an axe.