Shattered Whispers by Christy Barritt

When theater owner Abby Mendez goes in after hours to work on the set for their newest production, she’s shocked to find a body behind stage. She’d just gone out to dinner with the dead man earlier that very night. Even worse, the killer is still in the building.
Blackout operative Hunter Bancroft is nearby when Abby screams, and he rushes to help her. He’s trying to build a new life for himself after the death of his wife, and Lantern Beach seems like the perfect place to do so–until he’s pulled into the chaos surrounding Abby. Yet he can’t walk away, not knowing the jeopardy she’s in.
As more dangerous incidents begin to occur, Hunter and Abby find themselves in the middle of the killer’s deadly game. But the person behind the violent acts remains a mystery–as do his motives. When the truth comes to light, will whispers from the past shatter the new starts both are desperately seeking?