a perfect read for readers who like books that should not be taken seriously, at all.

A man is murdered at the mall where Jo works a coffee stand. A to-go cup from Jo's coffee stand is found at the scene of the crime and it looks like it held black coffee. Jo remembers all four customers that ordered black coffee that morning (of fifty customers) and helps the police with a list of suspects. But after the wife of the murdered man is taken in for questioning, Jo decides to do some investigating herself.

I had to stop reading at several points because the simplistic nature of the dialogue or the disregard for proper police procedure got to me. Really, the police should be more skeptic about whether Jo remembers all her customers correctly. Doesn't that mall have CC TV? That could have more reliable information about who went into the bathroom around the time the dead man went in.