内容简介：
You could find your new best friend on the net...or discover your worst nightmare. For 15-year-old Gemma it is already too late. Her body is found in the nave of a church in Ealing, west London. At first, all the signs were that it was a suicide. But then the autopsy suggests otherwise, and Detective Inspector Mark Tartaglia and the Barnes murder squad are called in. For Tartaglia and his team it is just a matter of time before the tragedy repeats itself.