Dennis Cooper is one of the few full-time resident National Trust curators in England and lives with his wife in the grounds of the spectacular Westbourne Gardens, which receives thousands of visitors each year. On the face of things, Dennis lives a perfect life and has a dream job, but this idyllic setting is riven with dark secrets, and it isn't long before foul play draws Lambert and Hook into this troubled Eden.

When a human skeleton is found on the boundary of a twenty-year-old property development, detectives Hook and Lambert must unearth the truth of who the skeleton belongs to and why it ended up buried so many years ago.