The eclipse of the red Supermoon sends crowds into Boston for an evening hyped up for a night of passion, one not to be missed. Boston police officer Larissa Riley wants nothing to do with the media-driven event, but her friend convinces her they need a night out after all they've gone through. They visit a new gothic-themed club where Larissa is disturbed by the attractive stranger eying her.
Roman, a gargoyle shifter and commander of the Stone Sentries, patrols from the rooftop of a club on the night of the eclipse. The Supermoon bodes danger and he puts all his sentries on watch. When a blast of dark magic soars past him, he searches for its origin and fixes on a brunette. Something about her is different, demanding all senses be on high alert. Is she dangerous? Or is she in danger?
Deciding a night with a hot stranger would be good for her, Larissa invites Roman back to her hotel, unaware he is surveilling her. The night takes a dark turn as secrets are uncovered and danger moves in. Her beloved city is under attack. Larissa must decide who to trust before all is lost, including the fate of her closest friend.