My Ex 2: Haunted Lover

Cee, played by Rachwin Wongviriya, is haunted by a ghost after her boyfriend Aof, played by Thongpoom Siripipat, cheats on her with Ying, played by Marion Affolter, who later dies under mysterious circumstances. As Cee's grip on reality falters, she becomes entangled in a complicated love triangle with Karn, played by Pete Thongchua, and her sister Bowie, played by Atthama Chiwanitchapan, who seems to be using Karn to manipulate Cee. In a shocking twist, Cee discovers she is responsible for Ying's death and ultimately kills her sister, Karn, and herself in a desperate attempt to escape her demons.