Fear Effect is an action game for the PlayStation. It was developed by Kronos Digital Entertainment and published by Eidos Interactive. The story concerns three outlaws named Hana, Deke, and Glas who are trying to retrieve the missing daughter of a wealthy Chinese businessman. Essentially a cyberpunk adventure set in futuristic China, Fear Effect's storyline also incorporates elements of Chinese mythology. The game was followed by a prequel, Fear Effect 2: Retro Helix, which establishes how the main characters first met.
When the daughter of a powerful Hong Kong Triad boss disappears, a trio of mercenaries arrive in the city to look for her. The fact that they have not been hired to do so does not dissuade any of them; their intentions are to find and kidnap the girl before her father's men locate her, then hold her for ransom. The girl in question, Wee Ming, has vanished into the fictional Shan Xi protectorate; Hana Tsu Vachel, the lead character and femme fatale of the group, used to work in a brothel somewhere in that region.
Hana arrives in Hong Kong accompanied by her male partners, Royce Glas and Deke DeCourt. What begins as a simple snatch and grab turns into a fiasco: The father of the runaway, Mr. Lam, attributes his fortune and power to a pact he made with demons long ago. Wee Ming, who is of demonic descent, has been scheduled to serve as a sacrifice to Yim Lau Wong, the mythical "King of Hell". When Glas is caught trying to rescue Wee Ming, Mr. Lam surprises Glas, cutting off his left arm. At the same time, Deke is murdered while trying to infiltrate the brothel.
The one-armed Glas reawakens in a meat locker, surprised to find he is still alive; he surmises that Mr. Lam must be planning a slow death for him. Wee Ming arrives and tries her best to free him. When Hana storms in to confront her former boss, Madam Chen, she learns that Chen is actually a demon in disguise. In the ensuing fight, Chen and her minions are killed, but Mr. Lam disappears with his daughter into a portal to Hell. Determined to save Wee Ming from whatever fate Mr. Lam has in store for her, Hana follows them into the portal, with Glas reawaking, and frees himself to give chase.
The last chapter of the game is a surreal journey through Hell where the Hana meets the Black Guard of Impermanence and White Guard of Impermanence (黑白无常) who gives her cryptic messages about her fate. Glas encounters the reanimated corpse of Deke, who is being tortured for the many murders he has committed. Deke takes on a grotesque demonic form and attacks Glas. After he is victorious, Glas promises to avenge Deke. Meanwhile, Hana finally confronts Yim Lau Wong, who explains that Hell has become overburdened with the souls of the guilty. Once Wee Ming is returned to the netherworld, Yim Lau Wong will be able to expand the reaches of Hell and consume Earth. Hana was chosen to look after Wee Ming because Yim Lau Wong desired someone "ruthless" to be her guardian.
At a critical moment, Glas reappears and tries to kill Wee Ming, believing her to be the root of the chaos. During the tense standoff between Hana and Glas, the player is given a choice over which of them should die. This decision will determine the final boss as well as the subsequent ending. On the "Hard" difficulty setting, a third option will become available: spare the lives of both Glas and Hana. In this ending, the pair emerge from the smoldering wreckage of the brothel, where they find a befuddled Deke sitting on a toilet. Deke has no memory of being killed, believing he has taken a bump to the head, and asks how they made out on the "deal". As he hoists himself out of the pit, Glas is stunned to realize that his left arm has been completely restored. The three partners walk off into the sunrise to continue their exploits.