Blue Room (2017)

Blue Room is a 2017 American slasher horror film written by Eli Roth & Andrew Alter and directed by Eli Roth starring Danny Huston, Claudia Gerini, Francesca Inaudi, Asia Argento, Ed Westwick, John Boyega, Katie Stevens, Darren Criss, RJ Mitte, Abbey Lee, Shay Mitchell and Arden Cho.

The film is the fourth and final instalment of Roth's unrelated Travel & Punishment quadrilogy that began with his 2002 directorial debut Cabin Fever continued with Hostel I (2005) & II (2007) considered to be one feature and The Green Inferno (2013).

Whilst Cabin Fever was attributed to Sam Raimi's The Evil Dead (1981) & John Boorman's Deliverance (1972), The Hostel films an ode to Juan López Moctezuma's House of Madness (1973) & Alain Robbe-Grillet's Eden and After (1970) and The Green Inferno inspired by Ruggero Deodato's Cannibal Holocaust (1980) and Umberto Lenzi's Cannibal Ferox (1981). Blue Room is directly inspired by the giallo subgenre and films Geiheimnis des blauen Zimmers by Erich Engels and Dario Argento's 4 mosche di velluto grigio (1971).