'Sit tight,' the brothers Pang thoughtfully admonish during their pre-credits sequence, before scaring the pants off us. Transplanted body parts have a tendency to misbehave in horror films, a fact unfortunately unknown to 20-something Wong Ka-Man (Lee Sinje), who receives a cornea graft to restore the sight she lost in childhood. Soon she's besieged by spectral presences and disturbing dreams, while up to her (new) eyeballs in a Third Act back-story down in rural Thailand, her doting psychotherapist in tow. As with their hitman-with-a-heart offering Bangkok: Dangerous, the Pang twins seem happy to reheat various genre clichés, but as Dario Argento well appreciated, perfunctory romantic subplots and incoherent plotting are swiftly forgotten when you have a sequence of sleek set-piece scares to focus audience minds.
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