Bramanto Putra finds an ancient notebook belonging to Maria van de Velde's lover that mysteriously disappeared and was fatal. Bram asks Susan Sriwati, a friend he has a crush on, to do his research. Both are students majoring in archeology who are completing their final project. Susan accidentally recites the spell she has managed to concoct. The result: awakens the dark spirits of Onrust Island, namely Maria van de Velde, Jehovah, Hasan, a slave carving gravestones, and Dr. Machinebouw. The four spirits bound each other. One of them is an executor who is allied with the devil and hunts Susan to turn her into a killing machine. Prof Daniel, Bram's uncle, together with Prof Tania helps Bram to save Susan. The riddle of Maria van de Velde's poetry is a thread to uncover the mysteries that occurred on Onrust Island 300 years ago.