Sanja Arunika. He is a detective with the rank of Second Police Inspector (Ipda) who comes from a big city. Sanja was transferred from Jakarta to Kalimantan, he was given the task of investigating a serial murder case that occurred on the border between Indonesia and Malaysia. The chase and the use of firearms were inevitable when Sanja started hunting for the alleged perpetrator. From his investigations, he slowly succeeded in uncovering various mysteries.