Tells the story of Mew (Witsiwit Hiranyawongkul) are often bullied by his school friends and neighbors. There's nothing to defend except Tong (Mario Maurer) which eventually make them both to be very close. In fact it has surpassed the closeness among friends. Family Tong Tang loss (Chermarn Boonyasak) makes Tong had to move house, it separates Tong and Mew.
Six years later, they finally met again. Mew who was a lead singer of a band called August Band songs for Tong. Spend more time with making Mew loves Tong. However, they do not understand that their love is a forbidden love that is not fair.
The Love Of Siam begins with yah ... .gitu wrote. Yes we know that eventually they will be very close. There's something in The Love Of Siam very very touching. First, its ending is not sad song ... but it was too sad. With the last sentence, "I can be with you as your boyfriend, but does not mean that I do not love you", the best line in any movies I've ever seen!