Die, Monster, Die! (1965)

Die, Monster, Die! (1965): adapted by Jerry Sohl from the  H.P. Lovecraft novella "The Colour Out Of Space"; directed by Daniel Haller; starring Nick Adams (Steve Reinhart), Boris Karloff (Nahum Whitley), Suzan Farmer (Susan Witley), and Freda Jackson (Letitia Witley): 

H.P. Lovecraft's 1927 story "The Colour Out Of Space" is one of a handful of the greatest horror stories ever told, eerily prescient in how it anticipates some of the effects of fallout and nuclear radiation exposure, horrifyingly vivid in its relentless description of the physical and mental disintegration of a family infected by Something From Outside.

I noted the excellent, recent German adaptation here. This 1960's adaptation takes certain liberties with the text and takes a little too long to really get rolling. But roll it eventually does, and quite effectively.

This was from AIP when it was still trying to imitate the British horror of Hammer Studios. The action of the movie has been relocated from the 1880's to the 1960's and from Massachusetts to England. A love interest has been added. 

Well, really all the characters have been added -- screenwriter Jerry Sohl has modeled the doomed family in this movie on a sort of amalgam of various doomed families in the stories of H.P. Lovecraft, none of those stories actually being "The Colour Out Of Space," in which a hapless family of farmers have to deal with the titular colour.

Boris Karloff is his usual magisterial self as the patriarch of the Whitley family. He's hiding a secret, one that seems to have infected his wife and his manservant. Brash, no-nonsense American Nick Adams (again, not in the original story) arrives at the behest of Karloff's wife to get Adams' fiancee Susan away from the cursed Whitley homestead. Poor old Nick can't even get a cab to the Whitley property, as the nearby town shuns the Whitleys and that whole area. This may be because the Whitley property is home to a "blasted heath" upon which nothing grows. Among other things...

Patience rewards the viewer with a gripping second half, complete with some fine, disturbing model work when it comes to monsters and disturbing make-up when it comes to infected humans. Adams is fine as a brash but occasionally bumbling hero, while Suzan Farmer has a somewhat thankless role leavened by allowing her some agency in facing the curse on her family. Also, a bracingly short 80 minutes and change! Recommended.