Josh is an introverted teenager with hopes of becoming a mystery writer. For him mysteries always happen behind a desk, until the day he finds himself entangled in a peculiar local crime in a small Mississippi town. Now Josh must overcome his shyness if he wants to both clear his name and be able to talk to his crush. By day he engages in some amateur detective work. At night he writes an old-fashioned British whodunit.

Without him hardly noticing, kudzu, the famously invasive Southern vine creeps in through his window. As the vine grows in, people from town and their characteristics sprout up in his writing. The two stories start overlapping and entwining. Clues in one help him work out the other. But in the end when both mysteries are solved and the culprits revealed the real question is will Josh win over the girl?