Something strange is going on at the Hereuse Nursing Home on the Isle of Bute. When Alison Cameron agrees to find out what is troubling one of the residents, a friend of her mother, she finds herself involved in a series of mysterious deaths. She also has concerns about her daughter, Deborah, who is working in the Reguis Gallery. Is the owner, Sylvester de Courtney, what he seems? And can Alison find out the truth before death claims another victime?