The Collector by Nora Roberts
Nora Roberts brings us a romance wrapped up in a thriller that would equally be at home under her nom de plume JD Robb.
Lila Emerson is a professional house-sitter and a successful young adult author. As part of her daily routine Lila, with her binoculars for company, takes in a spot of people watching. She watches a soap opera unfold in the apartment block opposite. One day a relationship appears to go a step too far when she sees a young woman plummet to her death.
Marrying romance and a proper feel of danger, The Collector keeps you guessing all the way.