Mit, a hotel manager in Chiang Mai, is going to Krabi to attend a wedding during Songkran festival. On the way, his car has an accident, so he has to hire Bang-ern, a bus owner to drive him to Krabi. The bus is tumbledown and Mit has no better choice, he is forced to take this bus. While driving to Krabi, they experience many troubles and later become new buddies who make chaos in Songkran festival.
Master Boh lies to the people that he can communicate with spirits and randomly predicts the numbers for everyone who wants to win the lottery. His tricky job dissatisfies to a powerful man Au, so it causes Master Boh's life in a danger. Meanwhile, a girl named Wan is murdered by Au, she returns as a vengeful ghost waiting for the revenge. Then, Master Boh and Wan team up to defeat the same guy.
Ping, a young nobleman, has retired from the service of the crown in order to become a musician. He becomes a student of Master Duang, a famous musician. Master Duang owns a mysterious drum called Perng Mang, which has the power to bring success or death to people.
After ruthless drug lords slay an undercover cop and his sister Nuntha, they then turn their sights on the dead cop's children. What they don't expect is Nuntha returning from the dead to protect her brother's orphaned kids.