Pied Piper tells the story of three main characters which were involved in an incident in their own way thirteen years ago. A criminal which tries to force his own justice on those who deserve it in a way that looks awfully familiar to a book called 'Pied Piper'. Pied Piper was a series which I have enjoyed watching with some dark plots. From my perspective it started a bit slow and boring, but gradually improved in quality. The series mislead you several times about the identity of Pied Piper, which makes you wonder at the end if it was really him (of course until it is known for sure in the last few episodes). Though I wouldn't rewatch this series as it is not fun anymore once you know all about Pied Piper's identity from the beginning. A dark, but great series from my point of view and I would give it a well-deserved 7.5.