It appears that Buck has been living at home since birth, and that his mental maturing process stopped at some point in early adolescence. When his mother succumbs to cancer, leaving him parentless, he informs Chuck (now Charles, a socially mobile L.A. music producer), a close childhood acquaintance, who attends the funeral with his fiancée.
Buck falls immediately back in love with Chuck, with whom he experimented sexually during their formative years. Unfortunately for Buck, Chuck's development landed him on the opposite side of the rainbow. Undaunted by Chuck's failure to return his affection, Buck packs up and moves to L.A., convinced he can win him back. So, there we have twist #1 - childhood romance leading to complications in adult life, but involving two men, one of whom is not homosexual.
Buck haunts Chuck's home and workplace, and involves himself in playwriting simply because a community theater facility is located across the street from Chuck's workplace. Here's twist #2 - a stalker invading the formerly placid life of his object, but being the sympathetic character versus the villainization of his desired. You won't see any boiling bunnies in this one.
Of course, Buck is not the typical stalker. He's an emotionally immature man who cannot come to terms with being unloved, now that his mother has died. Having equated sexual experimentation with lovemaking, he seeks to replace maternal love with the physical and fraternal love he remembers. Since his affection for Chuck never waned, he's baffled, hurt and confused when he's thwarted.
And we come to twist #3 - Buck is not the simpering, campy, slutty Hollywood homosexual. In fact, his character is so childlike, virtuous and passionless that when he does become flirtatious with Chuck, it's as jarring for us to watch as it probably is for Chuck to experience. Think Forrest Gump with an erection.
I gave this one a seven. The acting and cinematography are flawless, and the story is definitely original, but its need to be told at all is debatable, and the physical love scenes felt gratuitous.