Melody of Secrets

Botpleng, a young man who has lost his memory from an accident, has received a mysterious diary telling him that he used to have a lover named Tankhun. Yet, after meeting him, Botpleng knows right away that he is not his lover, Tankhun! Botpleng uses a mysterious murder case that happened on the day he met Tankhun as an excuse to get close to him and find out the truth. That makes Botpleng all the more impressed and swayed by this Tankhun. How will this love full of secrets unravel? What will become of Botpleng and Tankhun?