Min-tae, a once-notorious gangster who now leads a peaceful retired life, discovers the bloody corpse of his only next of kin: his younger brother Seok-tae. With his brother’s missing wife Moon-young as the prime suspect, Min-tae uncovers a suspicious last phone call between her and a mysterious novelist, sparking a vicious hunt for the truth despite his seemingly deceitful former crime syndicate and the police in hot pursuit.

Susan Morrow receives a book manuscript from her ex-husband – a man she left 20 years earlier – asking for her opinion of his writing. As she reads, she is drawn into the fictional life of Tony Hastings, a mathematics professor whose family vacation turns violent.

Every machine needs fuel.... Every machine needs repair... Every machine breaks down.