The identity of the two dead bodies discovered on the coast of the Darß after a storm has finally been established, but there is still no trace of their murderer. Chief Inspector Tom Engelhardt and cryptologist Mascha Krieger are back to square one. It turns out that the woman was killed seven years after the man and buried in the dunes. Have the investigators been following the wrong trail all this time? Is there even a connection between the victims? The murders appear to be linked to a burglary committed fifteen years ago. But before Mascha and Tom can reopen the case, a body is found after another storm. Tom is shocked because he knows the dead woman ...