While Strangers from Hell is a pure psychological Horror drama where as The guest is a purely Super natural horror Drama, the unsettling nature and tone of both dramas on a personal scale of all the characters matches a lot. Similarly the building tension in both dramas is kept taut from start to end.
Also if you enjoy stories about gruesome deaths and dark shadowy corners of human psyche where unspeakable things may happen I recommend both dramas as a must watch.