Terrifier (2017, dir. Damien Leone)

A psychotic murder dressed as a clown stalks two students on Halloween. Gleefully gory and grimy 80s throwback slasher/torture porn hybrid. Ultimately wearying, there are some genuinely funny / jarring / startling moments nevertheless.

Happy Death Day (2017, dir. Christopher B. Landon)

A female student has to relive the day of her murder again and again. Sprightly campus-based slasher horror-comedy, fairly unashamed in its mashup of Groundhog Day and Scream. Pretty good, within its limitations.

Maniac (2012, dir. Franck Khalfoun)

A mother-obsessed mannequin restorer goes on a killing spree. A proficient and times stylish remake of the 1980 original, though it adds little except a tidier narrative and well-handled use of subjective camera; not enough to justify its existence.

Maniac (1980, dir. William Lustig)

A mother-obsessed New York loner goes on a killing spree. De Palma-ish slasher, with the expected Hitchcock and giallo references. Maniac works because of its grubby style, its still-effective gore, decent direction, and a sweaty central performance.