Create a shadow without effecting the light in the scene.

I’m working on a cinematic, which uses a lot of shadow play.

I’d preferably create a dynamic light that casts only a shadow on the background, but I haven’t found a solutions so far.

Do you guys have any solutions by chance for this problem?

It’s not possible to cast a shadow without casting a light.
The best I can think of, is to use a cutout over the light (you can take a look at that in the content examples) and then set the light to a negative light value, so that instead of casting illumination it casts darkness, but in the shape of whatever it is you want. Not sure that the lights can do negative illumination values though.