Peter Swanson is a writer who has always been drawn to books with unreliable narrators. Spoilers ahead – although one of these books only wants you to think the narrator is a killer. You'll have to read them all to find out which.
1. 'Lolita' (1955) by Vladimir Nabokov
Humbert Humbert, the narrator, murders Clare Quilty, who took Lolita away from him. While Lolita is not a traditional thriller, it is one of the truly thrilling novels of the 20th century.