Fingerling gets dispatched to a suicidal woman, 'Suicide Blonde', who rants about her obsession with the number 23, that it "rules her world" before jumping from her apartment balcony to her death. Fingerling examines the apartment and begins to read her scribblings of the enigma and soon begins noticing the number 23 everywhere he goes too. Walter visits the book store and learns the book is self published and there is no other works or further information on Topsy Kretts. Walter starts becoming obsessed with the 23 enigma, the idea that all incidents and events are directly connected to the number 23. Robin seems taken in by the enigma whilst Agatha dismisses any significance about the number. As Fingerling's obsession with the number increases, so does Walter's and Fingerling begins having nightmares about killing Fabrizia.