The phrase "a grotesque set of" is correct and usable in written English.
It can be used to describe a collection or group of things that are bizarre, unnatural, or disturbing in some way.
Example: "The artist displayed a grotesque set of sculptures that left the audience both fascinated and horrified."
Alternatives: "a bizarre collection of" or "an unsettling array of".
The tiresomely odd British animation series "I Am Not an Animal" showcases the voices of innovative comedians like Steve Coogan and Simon Pegg in a grotesque setting: an animal laboratory.
We are standing to one side, apparently powerless, watching a grotesque parade of events set in train by religious fundamentalists of every stripe: Christian, Islamic, Jewish.
This straightforward approach defines the opposition as a set of grotesque caricatures before it has a chance to mount any kind of challenge.
Forthcoming BBC 2 program Britain's Hardest Grafter looks set to be a grotesque circus of poverty, in which 25 British workers a mix of the unemployed, the under-employed, and those earning the minimum wage—"will be put to the test in a series of challenges and tasks," according to a release put out seeking contestants.
This is definitely not a book for children: suicide, rape, heroin addiction, beatings and thoughts of patricide percolate through its pages; there is a sex scene set in a cemetery, a grotesque description of a used condom ("glistening in the grass beside her feet, like the gossamer cocoon of some huge grub") and alarming scenes of violent domestic abuse.
Throughout the works are elements of the human body — a wooden hand here, a set of legs there — for effects that are both comical and grotesque.
It is, instead, a grotesque abdication of responsibility.
Theirs is a grotesque version of what pioneering Zionism achieved.
This whole case has been a grotesque contortion of justice".
That's a grotesque simplification, of course.
