This looks suspiciously like a two way mirror. In a shower : r

This is an easy way to test #travel #staysafe #twowaymirror #traveltik, How To Know If A Mirror Is Double Sided

Hotel in Portage Best Western Resort Hotel & Conference Center

Arizona Woman Disturbed To Find Two-Way Mirror, Cameras In Her New House

Hotel in Billings Best Western Plus Clocktower Inn

How to Tell if a Mirror Is Two Way or Not: 8 Steps (with Pictures)

Tenants shocked by two-way mirrors, Local News Stories

Contractor Warns Woman to Check for Two-way Mirrors With Simple Trick - Dengarden News

Gravity Falls / Funny - TV Tropes

Deciphering Her Story. If you are looking for my spoiler-free…, by Adrian Chmielarz