Underground tycoon Adrian and top hacker "Black Widow" Jane disguise themselves as a contract-married couple. Adrian plays a down-and-out ordinary lawyer while Jane plays a lowly temp at the library; each secretly investigates the other, clashing many times. Jane hacks the tycoon's hundred-billion accounts and frames their pursuers; Adrian secretly resolves Jane's workplace crises and cleans up her enemy, the Viper Gang. At a masquerade rendezvous to trade secrets, they each see through the other's real identity: the bedmate they once lived with day and night is the very foe they have been hunting. The sweet illusion of their mutual disguise shatters instantly, and the confrontation snaps into extreme tension.