Leroy White is an old criminal with a spine the shape of a gnarled tree root, and when he gets the call to visit Teddy Phil's house he gets some bad news. His kid died. Murdered by a group of women who call themselves The Spinal Sisters. Three of them, all adopted from different countries, all lethal, trained killers under their father, the merciless Eugene. Leroy and Teddy search the crime scene and discover the women left a note. The sisters were searching for something, information. And now Leroy and Teddy have got fifteen hours to find it before the Spinal Sisters come after them with lethal intentions. But Leroy's got secrets. His back wasn't always curved like that. Something happened, something buried deep in his past, and as the hours sink away, secrets emerge, secrets that will change everything.