Pegg and Gaiman are joined by Christopher Lloyd and Minnie Driver in the surreal new film based on a (partially) true story.

Ever heard a mongoose talk? The Irving family was convinced they had, and told anyone who would listen in 1930s Britain that their farmhouse on the Isle of Man was inhabited by an animal named Gef. This phenomenon attracted the attention of various psychic investigators, which will be dramatized in the new film Nandor Fodor and the Talking Mongoose.

EW can exclusively reveal the trailer ahead of its premiere at San Diego Comic-Con later this week.

For such a surreal story, Nandor Fodor and the Talking Mongoose boasts an all-star cast. Simon Pegg stars as the titular psychic detective, who comes to investigate whether this mongoose really can communicate. The film also features Minnie Driver as Nandor's friend/assistant Anne, Christopher Lloyd as fellow paranormal investigator Dr. Harry Price, and Neil Gaiman as... well, the voice of the mongoose.