Suffering Man's Charity (2007)

Synopsis
A failed composer takes in an aspiring novelist/dilettante, only to find himself pushed to the edge of insanity when his charity is taken for granted in this simmering black comedy from director Alan Cumming. John Vandermark (Cumming) has a sizable weak spot for handsome young artists. Upon meeting down-on-his-luck writer Sebastian St. German (David Boreanaz), the sympathetic musician is stirred to help the budding novelist by offering him room and board. It doesn't take long, however, for the generous host to realize that his good will is being trampled by his brash young tenant. When Vandermark discovers that St. German has been sleeping with every woman in sight while casually brushing off his own thinly-veiled advances, the stage is set for an explosive confrontation. ~ Jason Buchanan, All Movie Guide