Interesting that this 2007 film is only now getting the recognition it deserves (a 2009 GLAAD nomination for Outstanding Film / Limited Release -- see Message Boards). Having never even heard of it when it was released, I just now finished watching it, and was deeply moved by its even-handedness and lack of melodrama. Instead of being a potboiler, Save Me (which indeed could have used some rescuing from the back burner of publicity) gently simmers its characters in a subtle stew of reason and emotion. One might expect the climax of such a film to concern sexuality, but instead it reaches out to encompass the gestalt of human relationship, of being and belonging.
As someone who watches almost no TV, I didn't recognize any of the actors, so I was pleased to discover them in this film. Gant and Allen were fine, Lang was excellent, and Judith Light was an absolute phenomenon: an astonishing performance of understated depth and nuance. She deserved an Oscar nod. The writing was thoughtful and well-balanced between character interaction and personal introspection (through individual disclosures to an off-screen presence revealed at the end of the film). Production values were superb, given what I assume was a small budget.
Along with exploring the psycho-dynamics of the individuals and their subsequently conflicted relationships, the film places the viewer at a level of detachment which promotes compassion for all of the principals - as well as a sense of forgiveness that is Christian in the very best sense of that word.