In a run down inn, three groups of people is together for their own different goals and also a group of bank robbers that hide money in the inn. But then, the money is stolen and the inn owner is mysteriously murdered. Who is behind this event? The answer awaits you in Happy Inn.
| Actor | Role |
|---|---|
| AAngie HealtingRita | Rita |
| SSayan MeungjarernNot listed | Not listed |
 Thongthong MokjokNot listed | Not listed |
 Somlek SakdikulSing | Sing |
 Akarin AkaranitimaytharattNong | Nong |
 Naowarat YuktananTaew | Taew |
| SSuteerush ChannukoolDetective Tod | Detective Tod |