There's nothing really new in "Little Devils".
The effort in watching the movie is not repaid, even with the best efforts of some of the cast.
There's apparently a troubled past behind the making of this movie. This explains a lot. It wouldn't have taken much more effort to get the devils quite decent for example. Perhaps the point was the poor model-making skills of the character and thus the look? The effect though is poor, sort of like a cheapened down version of Gremlins - the devils even die is a similar fashion pictorially.
The story?
Loner Lionel finds some magical mud or such and makes the titular creatures. The movie then entirely switches to his downstairs neighbour, trash romantic fiction writer Ed. That stays the case for the first two thirds of the movie. The last third is passable but only just.
It does not save the movie.
Utterly unsure of any real movement / motive / plot but I may have missed it somewhere.
It needs to be said that the final (pre-credits, see below) scene is awful.
There's some okay moments with two side characters (landlady and doctor) stealing the acting credits, such as they are.
Lastly, if you follow the ride through then stick around for the credits as there's a final scene that plays out entirely behind the credit-roll. Bit odd. There's a nice few paragraphs of script here though that I liked.
Not recommended,