'I've written three books and our deal is over'. That's what reluctant author Anthony Horowitz tells ex-detective Daniel Hawthorne in an awkward meeting. The truth is that Anthony has got other things on his mind. His new play, a thriller called 'Mindgame', is about to open at the famous Vaudeville theatre in Shoreditch. Not surprisingly, Hawthorne declines a ticket to the opening night. The play is not enjoyed by the critics. In particular, Sunday Times critic Harriet Throsby gives it a savage review, focusing particularly on the writing. The next day, Throsby is stabbed in the heart with an ornamental dagger which, it turns out, belongs to Anthony, and which has his fingerprints all over it.