Set in the 1990s, Laurent Nixon is a skilled assassin working under the Russian mafia group "White Iris". You are also a proficient assassin, but you belong to the rival Shanghai mafia group "Crimson Rose". White Iris and Crimson Rose each control half of Shanghai, but when a new mafia group infiltrates the city, you and Laurent are unexpectedly forced to work together to address the threat. Unfortunately, there is a twist: Laurent is your ex.