Upon reaching the top of the stairs, Simon did a quick scan of his surroundings. Kitchen, hallway, living room, and... people. Simon tilted himself to the side ever so slightly, yes, he could see the door behind them. For a minute he weighed up his situation. They probably lived here, for starters, and they might not be enormously pleased by the sight of him strolling through their house and on his merry way. However, the situation being what it was, he wasn't convinced that he had too many options open to him.
Besides, it was probably they who'd lured him onto the premises with the false promise of cats in the first place.
Emboldened by this thought, Simon set off towards the door, veering slightly so that he could circle past the gathered figures en route towards his point of escape, before making an attempt on the door.