Mr. Brown's girlfriend, described as despondent and suicidal due to her inability to escape him. She becomes the object of Lieutenant Diamond's obsession. After learning the truth about Brown's wife, she confronts Brown and later assists Diamond at the climax by shining a fog lamp in Brown's eyes, enabling his arrest.
Diamond's personal crusade is deeply intertwined with his dangerous obsession and unrequited love for Susan.
Susan is trapped in a controlling and toxic relationship with the sadistic gangster.
Explore the full interactive character relationship map of The Big Combo