Um homem, que tempos atrás decidiu abandonar sua família e sua terra natal para tentar a vida em novos ares, é obrigado à retornar para a Tailândia. Tudo porque sua família está ameaça por um lutador formidável: Mongkut, seu novo inimigo.

Russel Brody, a one-time successful playwright, works diligently on a follow-up play that could land him back in the spotlight he so early craves. With a baby on the way, however, and a strained marriage, stress and frustration take center stage. When his wife accidentally stumbles down the stairs and dies from her injuries, Brody's mental state goes from bad to one of utter despair. In a bid to help his friend regain his sanity, Brody's co-writer David Stanley suggests he revisits Lucy, his former mistress. The ghost of Brody's dead wife awakens to the sordid details of his unfaithfulness, enraging her supernatural spirit to haunt him in every horrifying way imaginable. At first, Brody thinks he's hallucinating and hearing things in his head, the result of his state of mind and alcohol. But as things intensify, his grip on sanity quickly slips away, and he starts to go mad. Appearing in every shadow, and provoking him relentlessly, the ghost cranks up her onslaught, making his life a living hell. Brody reaches his breaking point when the ghost possesses his former mistress, and he's forced to confront the scorned entity -- resulting in a climax of both psychological and physical terror.

Kurt Sloan e seu irmão, David Sloan, são campeões de uma dinastia de lutadores na Califórnia. Após vencer um campeonato mundial, David é atraído por um sombrio produtor para lutar sem regras em Hong Kong. Quando David morre, Kurt, com a ajuda de Durand, ex-treinador de David, decide dominar as artes marciais para combater Tong Po, kickboxer que assassinou seu irmão.