When mysterious drownings plague her small town, a detective haunted by her serial killer father must uncover whether revenge, ancient legends, or something darker lurks beneath the surface.

Lieutenant Anna Koray thought she'd finally found solid ground and escaped her past as the daughter of a notorious serial killer. A loving boyfriend, a loyal dog, a life that almost feels normal--except darkness has a way of seeping in. When she saves a boy from drowning, the strange marks on his body tell a disturbing story: something in the depths tried to drag him under.

Days later, another victim surfaces with identical marks and Anna's instincts scream that these are no accidents. Both victims are connected to the Kings of Warsaw Creek--men of the town's wealthiest and most influential families. And they have enemies.

Others whisper that there are witches in Bayern County, seeking revenge for a long-ago murder. Perhaps it's the work of Vivian Carson, the enigmatic bartender who's rumored to cast hexes on those who wrong her. Or maybe it's a secret coven who's been leaving serpentine symbols and skulls behind at the scenes of the drownings.

But Anna's investigation reveals an even more sinister truth: something is stirring in the water, and it wants the Kings to pay.

With time running out and more victims appearing, Anna must separate superstition from truth. But in Bayern County, where legends and curses run deep as the water itself, one wrong step could drag her into the depths--this time for good.