Gangsters are marking their spot on the lot outside of church when a priest goes up to them to get them out of there. The gang ends up killing the priest, and three nuns decide to take revenge.
I suppose this film would land somewhere between the splatter short "Bagman" and 70's nunsploitation. I'm sure you're annoyed by me very often using comparisions like this, but it's also a fast way of giving you an image of what you're watching. And in the case of "Thy Kill Be Done", it's quite clear that it's a film wanting to be a homage of sorts (although not a homage of "Bagman") with its attempted gritty and such. But as you know, I'm not easily impressed by fake-70's films anymore so it's not an advantage.
It's just a simple revenge story where a priest is killed by a gang. Three nuns are pissed off and go after them. A fight, or rather a hunt, breaks out and they're killed one by one. There's some needed splatter here and there, and some fairly creative kills, but in the end it's not much to judge in the film. It's an idea that is just semi-serious, and it's not very original nor does it strive to be, and it's never over-the-top in a way that makes it memorable ("Bagman", which I'm not too big of a fan of either, is one you remember because it's ridiculously stupid and overly splattery) even though the main attraction is just creative kills in an isolated location.
But "Thy Kill Be Done" does show us talent, even though it might not sound like it. The acting isn't bad but that's not what I'm looking at here. The thing that I liked the most about the film was the visual style, cinematography and some of the scene setups (like the Vietnam flashback where they're standing in front of a green projection of sorts). Basically, it just has some cool looking shots here and there and I just know that with a more ambitious project the people behind this one could get some great stuff done.
Overall, "Thy Kill Be Done" is just another homage/"grindhouse-wannabe", and while it still does it alright it's hard to give it much more credit than that. Sure, some giggles or at least smiles will be brought out while watching it, and if that's all you need at the moment then you could give it a shot. But it is very obvious that Greg Hanson and Casey Regan have something to offer and I am more than willing to check out more of their stuff in the future. I think they will find something they're great at, where their interest in the stylistic shots, can come into play and bloom a bit. So, not really a bad short, just not something I personally got much out of.