Suphakit Tangthatswasd

When old friends from school start dying one by one, Sayree and Nataya begin to search for the secret of the letter that each of their friends received before death. Soon the two believe they are the next targets.

Zien is a conman who makes and sells fake Buddhist amulets. His nephew Riang is a chip off the old block, with many generations of gamblers' blood running through his veins.