great movie but with even a greater plot hole

Rating: 5/10 (7 April 2020)

I watched the movie and I liked it but there were some very strange and odd things in the movie or I have to say plot holes.and by the way I don't remeber the names so I just explain about them.
1.how did taht guy in the basment free himself?
2.when kevins girlfriend goes and picks him up in the basment at the end of the movie doesn't she realise what is this door going downstairs which looks too creepy?
I would like you to reply to this review.