It is 1926, and the museum's extensive collection of exotic curios and occult artifacts poses a threat to the barriers between our world and the elder evils lurking between dimensions. Gates to the beyond begin to leak open, and terrifying creatures of increasing strength steal through them. Animals, the mad, and those of more susceptible minds are driven to desperation by the supernatural forces the portals unleash. Only a handful of investigators race against time to locate the eldritch symbols necessary to seal the portals forever. Only they can stop the Ancient One beyond from finding its way to Earth and reducing humanity to cinders.