Chow Ka-ho's father runs a big business in Thailand. Lik and May, a pair of siblings, work for him. One day, overcome by lust, Chow Ka-ho rapes and murders May and then buries her body in a secret location before fleeing back to Hong Kong. Chow's friends – Bud Yan and his cousin Bud Gay, and the Lai brothers – go on a trip to Thailand. At the hotel, they meet an attractive receptionist, Hok, and get her to be their tour guide. Bud Yan has a one-night stand with Hok.