Using lights to affect enemy movement -is it possible?

I’m very new at using unreal, and we’re making a first person horror game as a group project this semester. My group needs some help.

Here’s the situation. In our game we want to have it where if an enemy walks into an area that has a bright light, the enemy’s movement slows down until it is out of the range of the light. We also want it so that when the enemy is in an area where there’s no light at all, it will move faster. In normal light, it’ll move at a normal rate. In addition we would like it that if the player shines a flashlight at the enemy, it vastly reduces the movement of the enemy.

Problem is we have no idea at all how to go about creating this. I don’t even know if it’s possible. Does anybody have any suggestions on what we can do?