Comedy about a woman suffering from low self esteem who gets breast enhancement surgery, unaware that her surgeon worships H.P. Lovecraft's elder gods, and the surgery is part of a diabolical plot to rule the world.
Practical Effects
Gloriously cheap creature effects that wobble with personality
Acting
Debbie Rochon fully commits to the Lovecraftian surgeon bit
Writing
Puns so terrible they achieve transcendence

Director
Greg Lamberson
Trivia, insights & behind the scenes
Lloyd Kaufman's cameo as Dr. Foin is basically Troma canon confirmation.
The title 'Killer Rack' spawned from a 2012 short film Lamberson made for a 48-hour contest, proving some terrible ideas deserve feature length.