Aka：사건번호 137 / Il caso 137 / 137号案件 / 137 Numaralı Dava / 137號案件 / 137號檔案 / Дело №137 / Lieta Nr. 137 / Caso 137 / Případ 137 / 137-es akta - Egy belső jelentés
Summary：Case 137 is seemingly just another case for Stéphanie, an investigator at the IGPN, the police of the police. But an unexpected element will trouble Stéphanie and transform case 137 into something more than a simple number.
