The amazing screw on head

In this hilarious send-up of Lovecraftian horror and steampunk adventure, President Abraham Lincoln's top spy is a bodyless head known only as Screw-On Head. Fortunately, Screw-On Head is not alone on this perilous quest. He is aided by his multitalented manservant, Mr. Groin, and by his talking canine cohort, Mr. Dog.