Horror Hunks: Josh Ethier & Michael Locicero in Almost Human (2013)

Almost Human centers on Seth, a man who witnesses the disappearance of his friend Mark (played by Josh Ethier) in a flash of light on one fateful night. Two years later, Mark reappears behaving strangely. He begins a violent string of murders, leaving Seth to try to thwart the evil that now resides within his friend. Josh showed rear nudity for his character's post-abduction return as he's found naked in the woods by two hunters. There's also rear nudity from Michael Locicero, who plays one of Mark's victims. He is cocooned after seemingly being shot to death and emerges possessed and naked to attack Seth during the film's climax.