The handsome thief Luo Ziyang (Zhang Zhilin) only has one working day a year, but he always returns with a full load of gold foil. When executing a plan, he happened to meet another female thief Cat (Shu Qi) who came to steal treasures with her sister. The two fell in love at first sight and became lovers. After a while, it became increasingly difficult for them to communicate, and they eventually broke up. Three years later, Cat worked in a high-tech company, but she still couldn't forget her relationship with Ziyang in her heart. When she was having a party with her good friend Bazhua (Kelly Lin), she unexpectedly received a clip of Ziyang's help from the Russians. It turned out that Ziyang agreed to steal the latest invention of Megasoft in the United States, the "Computer Virus All-purpose Removal System" (KTV for short), from the Russian mafia. The software was hidden in the safe of Cat's company, which was full of traps. Ziyang failed in his operation and was captured. The Russians threatened Cat to steal a KTV and replace him within seven days, otherwise Ziyang would be killed. Cat is still in love with her lover and can't bear to see him killed, so she prepares to go out again and orders Ba Zhua to gather the other five sisters of the Seven Thieves: Monkey, Spider, Dove, Goldfish and Peacock to help rescue Zi Yang. Just when they are about to complete the mission, they find out that there is another hidden story...