biastophilia

1: (from Greek biastes, "rape" + -philia) is a paraphilia in which sexual arousal is dependent on, or is responsive to, the act of assaulting (possibly sexually) an unconsenting person, especially a stranger.

2: Sexual arousal sprouting from the thought of sexually assaulting an unwilling victim.

The doctor decided that the problem with Mr. James was the fact he dreamed of Biastophilia.