An estate agent is forced into witness protection soon after selling the apartment of a girl who died in suspicious circumstances. However, when the deceased girl's mother is also found dead, all signs point to a murderer on the loose, and it becomes apparent the agent's new identity may not protect her from the killer.

When Lucy Graham weds the much older Sir Michael Audley, his nephew Robert is suspicious of the lovely young woman's motives. Soon, Robert's friend disappears, and Robert believes Lucy may be involved. But as he attempts to unearth the truth about Lucy's past, he finds himself irresistibly drawn to her dangerous allure.