A stranger inserts himself into an existing social dynamic (family, couple, friend group, workplace...) and gaslights everyone into believing he's always been part of it.
The trope usually involves people being conditioned around the preferences of the "inserted" stranger.
A stranger inserts himself into an existing social dynamic (family, couple, friend group, workplace...) and gaslights everyone into believing he's always been part of it.
The trope usually involves people being conditioned around the preferences of the "inserted" stranger.