Taylor Halstead is terrified that she'll never be safe again. Her secure world is violated by her cousin Stephanie's boyfriend, Gordon Mallory, in her own apartment. Soon after, he is killed along with Stephanie in an inexplicable explosion aboard his yacht. Or is he?

It seems the only one Taylor can turn to is attorney Reed Weston. But is Reed's determination to protect her enough to avert disaster? And can Taylor trust Gordon's identical twin, Jonathan, who always seems to show up when she least expects him?

Grief and dread unravel Taylor's sanity, playing tricks with her mind and heart. Gordon's vow to return and those final menacing words - "I'll be watching you" - haunt her day and night. Whoever is out there is coming closer - and Taylor Halstead has nowhere to run and nowhere to hide.