In Darkness (2015)

Khun Tibet is a poor guy, who is from the south. He decided to go to Bangkok to work as a bellboy in a famous hotel. There, he meets his first love, Kolmekkala who is nicknamed Moth. Tibet secretly loves Moth who is Khun Ying Srimuang's niece, the hotel owner. He tries to stop loving her because they are from different backgrounds. Therefore he tries to work hard and dreams of becoming a millionaire so he can be together with her.