French policeman Louis Daniel now works for the International Criminal Court in The Hague and has put together a team of police officers from across Europe to deal with transnational crimes. He recruits former NYPD Sgt. Carl Hickman who left the force after being shot in the hand and under a cloud of suspicion. They are currently investigating a series of killings that they believe is the work of a serial killer. The first victim was in Rome 7 months ago, followed by similar deaths in Dublin, London and most recently, Paris. They find crucial evidence at the Paris crime scene, including one of the victim's shoes. When Hickman and investigator Anne-Marie San follow-up on the shoe, San goes missing.
—garykmcd