Magic Forums

This is probably hollywood only too but as it is often pictured, is it possible to summon a demon (not as an physical entity, that i obvious)
and forge a pact where he helps you or follows your commands or such and will get your soul in return once you die?

basically good old selling your soul to have demon help, is that in one way or another possible?

I can imagine that no physical demon boy will show up but I wouldnt deem it impossible to do the whole soul for lifelong subordinance pact on a ethereal plane or whatnot.

Is there generally such a thing possible in one way or another?