Brief Encounter (S02E07)

Sharon intervenes when 53-year-old Don Sheridan is mugged at the Chigwell tube station. Later that evening, they unexpectedly run into each other at a bar, where Don reveals he's in Chigwell for work as a financial adviser to Marcus, who's facing financial difficulties. They start dating and end up sleeping together, even though Don is married. On his last night before returning home, they plan to indulge in some drugs that Sharon intended to give to Chris in prison. However, when the police show up to return Don's wallet, he hurriedly flushes the drugs. Meanwhile, Dorien spends £2000 to change her phone number to 071, believing it to be more exclusive.