Although her father has been dead for fifteen years now, his unsolved murder is never far from Detective Ann Kathrin Klaasen’s mind. Her concerned partner, Frank Weller, presses her to finally see a doctor. At the doctor’s office, Ann Kathrin catches a glimpse of a photograph of her father in an old woman’s wallet, pictured with a woman she has never seen before! Will this coincidence finally lead her to the crucial clue to finding her father’s murderer? No case has even been more personal to her.