Hana, an elite investigator who disregards orders from above and has no rough edges, is determined to dismantle the international crime syndicate "Gryps," which smuggles drugs. Behind her excessive investigations lies a burning desire for revenge against the leader, Tabuchi, who killed her father. Hana manages to obtain information about the hideout from a dealer and conducts an undercover investigation, but the information leaks, and she ends up captured by the organization. Trapped and unable to move, Hana is administered drugs and fiercely resists, but gradually loses her rationality to the pleasure that consumes her body.