The play begins with a man being attacked on a woodland path. Then we meet Oskar, a lonely teenage boy who lives with his mother on a housing estate at the edge of town, and who is being badly bullied at school. News spreads through the neighbourhood of a spate of sinister killings. But Oskar is drawn to Eli, the young girl who has just moved in next door. Eli doesn't go to school, and never leaves the flat by day. Sensing in each other a kindred spirit, the two become devoted friends. What Oskar doesn't know is that Eli has been a teenager for a very long time.