Doctor Who: The Zygon Who Fell to Earth (2.6)

There are no monsters this time... are there?

Ten years later and Aunty Pat is in her prime. She's snagged herself an ex-rock star at the Kendal Folk Festival and now, in the brave new world of the early 1980s they manage together a snazzy hotel on the poetic and shingly shore of Lake Grasmere. However, still waters run deep and friends from the past are returning, intent on milking the old cash-cow...