The clock is ticking, and for Margot, time has just run out. Margot Remington exits the wood-lined boardwalk at Moonstone Beach and pedals her bike onto the highway. It's dusk, and the sky has started to grumble, the clouds shifting and bending as they turn a melancholy shade of gray. Rain is coming. Margot can smell it in the air. But after the argument she's just had with her sister, she isn't ready to return...