Set in Thailand, between April-June 1999, 'A Moment In June' is a story of the fusion of six lives, a song that links them together, a hope of the second chance that might never come and a moment they all need to make a life-changing decision.

Khao Niao, a young girl, is left at her relatives' house by her mother. Although she is surrounded by familiar faces, she still feels very lonely and blames her mother for 'abandoning' her here. One day, while wandering around, Khao Niao finds a stray puppy.

A Bangkok talk radio station has a program on people's relationship problems. There are many call ins from people who are gay or from people who find out their lovers are really gay as is common in Thailand. In fact many Thai women often complain how they find a Mr. Handsome only to find out later that their Mr. Perfect Haircut is gay.

An obsessive-compulsive Japanese librarian living in Bangkok spends most of his days contemplating suicide in his apartment. His life changes when he witnesses the death of a young girl and becomes acquainted with her elder sister.