The Hotel!!

Sarapee and Pun come into possession of a seaside mansion left to them by Luang Narubal, the husband and benefactor they deceived and abandoned, leaving him to die in despair. They decide to move in and convert the mansion into a hotel to generate income. Fast forward twenty-five years, Sarapee has passed away. Her children with Pun, Parinya and Patama, have grown up and returned from overseas to manage the hotel. After they refurbish the place, strange events unfold. A series of deaths occur repeatedly, sometimes witnessed by Parinya and Patama. Soon, they find themselves as the last ones standing, tasked with solving the mystery and fighting for survival. Who is behind these mysterious killings?