The movie takes place in Germany, they visit Cologne. The movie was filmed probably around 2005 or 2006.
The killer is a woman with long dark hair and uses a bow and arrow at some point. She's a good fighter and shooter and is really good looking. The man is young, tall and has brown hair.
She meets the man (right after he had a fight with his girlfriend, a blonde woman). They have sex and when he wakes up in a hotel room she has left the room, he gets a call from her saying someone was killed in the hotel and that he must escape, he doesn't and gets arrested. She has framed him, he is now believed to be a professional hitman responsible for many murders. On the way to the police station the woman kills the police officers and kidnaps him. She takes him with her to also frame him for the other murders she still has to commit. When this is over she wants to retire and needs him as a patsy. The police and his girlfriend are after them. She kills another victim and there is a final scene with a fight between the 2 girls. Happy ending.