There is irony in the title of this latest thriller from Frances Fyfield as the houses featured are not at all safe. Sarah Fortune is being harassed by the son of the client who left her her flat. When she makes contact with a new client she finds he is being victimised by a neighbour. She decides a temporary exchange of residences might be in order to give them both breathing space. Meanwhile Sarah's adversary has contacted a local arsonist with a view to having her sit up and take notice of his claims. The arsonist is a client of Sarah's and makes the fire small and easy to contain in her bathroom. Sarah's tenant is very competent where fire is concerned, being a former insurance assessor, and deals with the fire efficiently, realising it was not intended to do any real harm. Fires also take place at the house Sarah is staying in and that of her best friend Dulcie. These fires are not the responsibility of her friend and when the four get together to discuss strategies they assume that the villain of the piece has lit them himself: Dulcie has a close call and Henry's neighbour is killed. A very well plotted thriller.