Mr. M is being watched. As a famous writer, he is no stranger to the limelight, although interest in his work has been dwindling of late. His print runs are smaller than they used to be, as are the crowds at his bookshop signings . . . Our narrator clearly takes a keen interest in M.'s work, and indeed in every aspect of his life. But what exactly are his intentions? And to what does Mr. M owe the honour of his undivided attention?Our narrator seems to be no stranger to murder, while his own story appears to bear more than a passing resemblance to the plot of Mr. M's most famous novel: a teacher has an affair with a student, only to be brutally murdered by the girl and her teenage boyfriend.