I think they both do well for early experiments in FMV gaming. They both have plots that are reasonable for builiding tension (though neither stand up well to close scrutiny) They are the B-move horrors of adventure gaming.
Played properly the final chapter of Phantasmagoria 1 is a real masterpiece of tension
Spoiler:rushing around the house gathering the items you need to beat the end game whilst trying to stay out of Don's clutches. It is actually possible to grab all the items you need without having any sort of chase sequence. This pretty much relies on you knowing what you are looking for. The last item is the spell book in the bathroom (where the chase sequence starts if you play it properly)
The second game (which the screenshot is from) suffers badly from the non-supernatural endeavours of the early part of the game (more so than the original I'd say) but the payoff, bizarre and unlikely as it is, is fairly well handled.
