Stefanie Cormack is a high-class escort and also a spy for the Italian Mafia, but she is now a single mother with a 7-year-old daughter, working hard in a London restaurant to support her family. One day, the mafia approaches her again, asking her to carry out one last mission and kidnaps her daughter to threaten her. As the situation gets worse, Stefanie finally figures out the whole story. The mafia is ruthless, but they don't know that a single mother willing to protect her daughter can be even more merciless...