Calder. Mastiff Security, #2

This is the second book of Mastiff Security Volume One, with over 50, 000 words of romantic suspense.  She woke, her face bruised, her wrist sprained, with no memory of what had happened the night before. Not fifteen minutes later, a knock on the door announced the police were looking for the person caught in a hit-and-run on a traffic cam. When they told her the victim's name, she almost believed she was responsible.
But why did she have no memory of the events? She didn't drink, she didn't party. She didn't usually attend parties, but someone had talked her into it, and she only stayed a few minutes. And she didn't drink nearly enough to get blackout drunk. Yet they had a video...