Angel works in an ambulance service. After a tragic accident, his personal life begins to deteriorate as he becomes more and more suspicious of his partner Vane.
When Cecilia's abusive ex takes his own life and leaves her his fortune, she suspects his death was a hoax. As a series of coincidences turn lethal, Cecilia works to prove that she is being hunted by someone nobody can see.
Ten years after her aunt was murdered in their London home, a woman returns from Italy in the 1880s to resume residence with her new husband. His obsessive interest in the home rises from a secret that may require driving his wife insane.