The Ring reference
When you are in Chapter 7: Sae, go to the sliding screen room in Tachibana House and look under the ladder. You will see the floor broken and a well under it. Also, if you get Film Reel 6, go to the projector room and watch it. You will see the ghost of Woman in The Box getting out of her box and coming to get you, just as Samara did in The Ring.