Doctor Who S5 • Episode 11
The Lodger
A mysterious force blocks the TARDIS — with Amy inside it — from landing, keeping it stuck in a materialisation loop. It's up to the Doctor to work out what that force is, lest Amy be lost forever along with his home/motor. As he investigates, the Doctor learns of a house on Aickman Road, with a staircase which people walk up but never come back down. To solve this mystery, the Doctor must pass himself off as a normal human and share a flat with Craig Owens.