Mootha, the naive and innocent twin, left her rural home and went to Bangkok to work. Her co-worker, Veekit, liked her but was heartbroken when she wanted to be only friends. Mootha had fallen for the charms of her philandering boss, Janepop, who is married with three children. Janepop tricked Mootha into an affair, and when his wife found out, she publicly humiliated Mootha at work. The sensitive Mootha returned to her family home, depressed over not being able to be with her love and committed suicide. She died the day her identical twin sister Moonin returned from abroad.

Moonin felt guilty over her sister’s suicide and decided to avenge her meaningless death.