Showing Down with the Lizards and the Bees by T.A. Pratt

Bradley Bowman -- "B" to his friends -- was an up-and-coming Hollywood star when he began to be tormented by visions of impossible monsters. Now he lives a threadbare existence, unsure whether he's going insane or just witnessing the workings of a deeper world. When a desperate man asks for B's help to journey to the underworld to save his lost love, B agrees... but the ordeal becomes more personal than he expected.

This is the first story featuring Bradley, who became a major character in Pratt's series of urban fantasy novels about sorcerer Marla Mason.