Daemon Madness — S.K. Gregory

Mackenzie Murphy thought her demon troubles were behind her, but with Taryn as her new roommate and his father still out to kill him, it seems there's no getting away from them. When Taryn begins to act erratically, Mackenzie discovers that he has to face the consequences for saving her life. Deadly consequences. So it's up to Mackenzie to save him, while avoiding the attention of a local cop and her homicidal boss. Maybe demons are the least of her worries.