When garden designer Fern Green escapes London and her abusive boyfriend to set up her new business in the remote South Shropshire hills, she believes she has found peace and safety at last - until she finds the body of her first client, wealthy herbalist Joshua Hamble, dead in his physic garden. While Fern works to reclaim her garden wilderness, she becomes entangled in a deadly family feud. As she unearths the truth about Joshua's death, DI Drummond warns her, "gardening can be a dangerous business."