Laila Boonyasak

A suicidal, obsessively compulsive Japanese librarian is forced to lie low in Thailand with a pot-smoking woman coping with the recent loss of her sister.

Buppah Rahtree is a loner female student at a Bangkok university who becomes the object of a wager by a group of male students to see if she can be bedded. (Wikipedia)

4BIA is a Horror Anthology. The first segment, "Happiness" is about a lonely girl who corresponded with a stranger over hand phone text messaging and soon discovered something strange! "Tit For Tat" spun a tale of black magic and vengeance for a school kid that had been bullied by a school gang. "In The Middle" - a group of friends faced one of their worst camping trip after water kayaking accident."Last Fright" about a stewardess flying solo in a cabin with a dead body. (imdb)

Two young boys are best friends living quiet family lives in Bangkok. Their lives are disrupted when one boy's older sister goes missing on a jungle trip. The shattered family moves away, separating the boys. Years later, now in their late teens, the boys meet again. One of them is now the leader of an aspiring boy band whose managing assistant bears a striking resemblance to the lost sister. The boys must deal with their family and social lives and their feelings for each other (imdb)

Yen's brother Alan has been missing for six days.Somehow, it is connected to an amusement park where a girl died 14 years ago in a ferris wheel accident. Their mother, who has the power to capture ghosts with a camera, believes he is dead, but Yen decides to go to the park to look for him. Along with friends Yen is chased out by a watchman. But they ignore his warnings and, one by one, they die. (imdb)

It follows the story of two lonely teachers, a male and a female. They were assigned at the same rural school but a year apart. (imdb)

The vengeful female ghost, Buppah, continues to inhabit apartment 609. She shares the room with her ghost boyfriend, Ake, who has been left legless by Buppah after his transgressions in the first film. A blind woman named Thip rents a neighboring apartment. She is due for an eye operation, but the doctor treating her tries to rape her. He is stopped by Rahtree who takes pity upon Thip. (imdb)

Rahtree has been reincarnated into a young girl, who is abused, mistreated and ultimately murdered. Her spirit then returns to exact revenge on her tormentors. (imdb)

This time, the local police are alerted to the whereabouts of a notorious gangster but everybody is leery about entering this particular apartment as it's haunted by several ghosts, including Buppha Rahtree and a savage, knife-wielding mini-Buppha! (imdb)