Before suffering a stroke, Mai is abandoned by her husband during his overseas business trip and suffers from sexual frustration. Late one night, she is left alone and penetrated. During the act, she suddenly collapses. Her husband, on his way back from abroad, also suffers a stroke and dies unexpectedly. At the wake, her in-laws gather and begin reaching out to Mai, dragging her sister-in-law and stepmother into a depraved incestuous orgy of gang rape and humiliation.