Mark Twain is in merry old England to see his family. Wentworth Cabot, Twain's assistant, is looking forward to seeing the sights, and hopefully finding some peace and quiet — when not helping his boss with a new lecture series. But peace is the last thing they find when they bump into Slippery Ed, a con man from New Orleans and an acquainatnce of Twain's. Ed convinces Twain and his family to attend a seance. The famed author is skeptical of “spooks.” But when another attendee is murdered, Twain must discover whether the killer is one of the flesh-and-blood members of the audience — or a specter from the beyond!
