As Laura returns home Andrew is visited by Dennis Walters, who tells him that Laura accused him of sexual harassment when they taught together but ultimately withdrew the complaint. He tells the police, who drop the current case but Andrew's reaction troubles DI Harmon. At school Laura discovers that Luke has had sex with fellow pupil Madeka, causing a pregnancy scare and asking her not to tell her father. Consequently Laura asks Andrew for his help, which he gives. Meanwhile Tom's clumsy attempt to make Andrew back off backfires when Andrew tells him he knows about the affair with Katy.
—don @ minifie-1