'Post-traumatic stress disorder is a slippery condition to pin down and portray. Cinema in general struggles to convey the depth and nuance of mental illness, especially when it stems from trauma. We’re often left with frenzied flashbacks, bombastic sound design, and overripe performances that skirt dangerously close to parody. A mental illness is like a haunting, which may be why genre cinema – especially the horror genre – has recently found such success exploring the topic.' (Introduction)