A lovely couple - Sun and Pear met in Nang Ta Kian Valley, but their love doesn't last long. Pear passes away and Sun have no choice but to leave Nang Ta Kian Valley for his new life. Two years later, Sun return to Nang Ta Kian Valley for research with his team of crews. He Brings along his new girlfriend - Noon and also told her about him and Pear's history in this valley. Research is going well at the beginning, till one morning one of the crew was found dead in the forest... Who killed him? Will that be the return of Pear???