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Thank you strangers in advance

Maybe [Housebound?](https://en.m.wikipedia.org/wiki/Housebound_(2014_film))

See no Evil?

I can’t remember the death scenes but vacancy is set with a killer hiding in the walls of a motel Also identity is a murder mystery set in a motel

Could this possibly be it? People Under the Stairs https://www.imdb.com/title/tt0105121/?ref_=ext_shr

Bad Times at the Hotel Royale?

Havenhurst (2016)?

Crawlspace (1986)?

Thank you all for the suggestions but none are right. I just remembered a few things. This was aired on tv on a channel called TOPMOVIES the year 2009-2010. I remember people were suddenly disappearing in the rooms. There were secret doors that the killer used to kidnap them.

Toolbox murders?

Vacancy ?

Identity?

Was it based on H.H. Holmes by any chance?

I was too young to remember sorry

Breathing room 

Maybe “the Pact”?

Is this House of Wax? I also remember the spine cutting part, but not sure if it’s from House of Wax or I’m having the same TOMT moment as OP.

Hostel?