When Jessica foisted herself on to a study/experiment, after seeing its details on a client’s phone, she got a lot more than she bargained for! There then follows a very bizarre tale of obsession and manipulation where nothing is to get in the way of the desired end - nothing. It took a while to get into how this book works, not helped by the stilted narrative by the other main character, who manages to make the speaking clock sound lively! A thrill a page it isn’t, but does have one or two moments, especially towards the end. None of the three main characters have much going for them, being devious and unlikeable. Loved the idea of this story and read it with eyes agog at the goings on from supposed professionals.