Let's Play Resident Evil 7 Part 6 - Resident Kinevil
https://www.gamespot.com/articles/lets-play-resident-evil-7-part-6-resident-kinevil/1100-6455700/
Now that Mary has dealt with Marguerite, it's time to move on to Lucas, possibly the jerkiest jerk of any video game jerk. Ever.
In the episode above, Mary Kish finds the Snake Key and makes her way into the attic, in search of Oliver and his decomposing body (not really, but Mary doesn't know that yet). Mary also returns to the basement, finds a trap door, and runs into Grandma again.