In his living room, a reader of H. P. Lovecraft's stories ponders the work of the "Master of Providence". One night he receives an anonymous phone call. He is invited to visit the “Great Library”... A cloud of smoke fills the room... The reader finds himself in front of a Lovecraftian library. The doors open... In this enclosed space, whether real or imaginary, readers follow a thematic path (monsters, dreams, architecture, sounds, etc.) and meet prominent Lovecraft specialists.