Write a story about a scientist who accidentally creates a device that allows them to communicate with beings from other dimensions

Write a story about a scientist who accidentally creates a device that allows them to communicate with beings from other dimensions. At first, they are thrilled by the discovery, but soon they realize that the beings are not as friendly as they initially seemed. As the scientist delves deeper into their communication with the otherworldly beings, they uncover a dark secret that puts not only their own life in danger, but the fate of the entire world.