Long Hello and Short Goodbye (1999)

The cop Kahnitz wants to finish off the little gangster Ben. The young undercover policewoman Melody is supposed to tempt him to make his final break. What Melody doesn't know is that Kahnitz and Ben are connected by a dark chapter in their past, and Melody is supposed to help Kahnitz settle his old scores. But the intriguing game of love, hate, crime and betrayal inevitably drags everyone involved into a bloody showdown...