The killer clown film is a genre niche that has gained some popularity in recent years. The earliest films I can find that delves into the subject were a cluster in the late 1980s with Killer Klowns from Outer Space (1988), Clownhouse (1989) and Out of the Dark (1989), although the theme was popularised by the original It (1990), while you could also cite The Joker from Batman comics and real-life serial killer John Wayne Gacy. We have seen other films over the years featuring killer clowns with the likes of The Clown at Midnight (1999), Killjoy (2000), House of 1000 Corpses (2003), Drive Thru (2007), The Fun Park (2007), 100 Tears (2007), Torment (2008), Stitches (2012), All Hallows Eve (2013), Clown (2014), Clowntown (2016), It (2017) and the tv series American Horror Story: Carnival (2014), while the killer clown was even introduced as one of the horror tropes in Cabin in the Woods (2012).
Clown Kill is amateurish and painful to watch. The film appears to have been shot entirely by natural lighting. Despite Mark Howard claiming to have been making films since the mid-1990s (two decades), his directorial set ups are like those of kids playing at home movies with their parents camcorder. (Nobody takes a cinematography/videography credit on the film, no doubt out of shame). For the bulk of the show, Mark Howard appears to have obtained the use of an office building and has various creepy figures and a killer clown stalking and killing people who are working late in the building.
The one plus side of the film is that Mark Howard lets many of his actors improvise and left to themselves they come up with some amusing monologues be it the security guards talking amongst themselves with one exaggerating his exploits, the other revealing he is afraid of actually going into action and wetting his pants when he does; or else The Supervisor who delivers a monologue to employees and in a surreal touch then turns to talk to a girl he keeps under his office desk. The film shoots itself in the foot with an improbably contrived ending where [PLOT SPOILERS] much of what has happened is shown to be a set up before everything is revealed to be an hallucination being experienced by Jessica Cunningham while in a coma.