The "Grand Theft Auto" series of games developed by Rockstar Games is known to court controversy. It's what they do...and they are quite good at it.
This, however, may be crossing the line just a bit too far. An article at Crave Online has a video that seems to depict an abduction/rape scenario playing out. "Grand Theft Auto V" features an open-world in which random events are trigged that the player can actively get involved in. In most cases, these events depict someone's vehicle/purse/wallet being pilfered, thus allowing the player to retrieve the personal belongings for the victim in exchange for a cash reward.
Luckily, the player who uploaded the video, one Douglas Girard, tried to stop the crime that the NPC's were perpetrating, but was shot and killed in the process, so the resolution of this random event is unknown.
But, as the article points out in an update, "the men in the video likely belong to the Altruist Cult, a group of cannibals who live in the Chiliad Mountain State Wilderness.Though we've never encountered this particular random event ourselves, some are claiming that they have and that it does not depict an attempted rape, but rather an abduction that happens to involve one fully nude man."
Either way, it's still a pretty crazy thing to come across in a video game. Check out the NSFW video below to draw your own conclusions.