Italian horror master Dario Argento elevates the giallo genre to new heights with 1982's TENEBRAE, a darkly humorous and notoriously grisly murder-mystery that many consider to be one of his finest works. Now, Synapse Films, in conjunction with Arrow Video, makes this gory suspense classic available for the first time on UHD in a new 4K restoration for TENEBRAE's 40th anniversary! American mystery author Peter Neal (Anthony Franciosa, Death Wish II) comes to Rome to promote his newest novel, Tenebrae. A razor-wielding psychopath is on the loose, taunting Neal and murdering those around him in gruesome fashion just like the character in his novel. As the mystery surrounding the killings spirals out of control, Neal investigates the crimes on his own, leading to a mind-bending, genre-twisting conclusion that will leave you breathless! Co-starring John Saxon (A Nightmare on Elm Street), Daria Nicolodi (Phenomena), John Steiner (Caligula) and featuring beautiful cinematography by Luciano Tovoli (Suspiria), this stunning all-new 4K restoration includes hours of extras and, for the first time ever, the alternate U.S. theatrical cut, Unsane. Synapse Films presents Dario Argento's Tenebrae in a strictly limited, three-disc (2 UHD/1 BD) 6000-piece Limited Edition boxed set. One pressing only.