A woman disappears.One moment, Selena Cole is in the playground with her children and the next, she has vanished without a trace. A woman returns.Twenty hours later, Selena is found safe and well, but with no memory of where she has been. What took place in those missing hours, and are they linked to the discovery of a nearby murder? . . . . . . . . . . . . . . . . . . . . . . . . . .