Bangkok. Dream city. A trap city... A tropical paradise, secretly considered the world capital of prostitution and drug trafficking. Here the police are in the pay of mafia bosses and owners of expensive brothels, and crimes most often remain unsolved. However, Detective Sonchai, a former street bandit who became a tough cop, is used to to get wish. Especially now, when not only his professional reputation is at stake, but also the life of his good friend Chanya, the most beautiful and elegant of the “night butterflies” of Bangkok, who is accused of murdering a US intelligence officer. All the evidence is against Chanya. And Sonchay’s only clue is a description of the tattoo that the killer for some reason cut off from the victim’s body...