Eccentric scientist Harper lives in a spooky mansion with all the trimmings: hidden lab, secret panels, inscrutable butler, and greedy relatives with unusual talents. When Harper seems to be murdered, Charlie Chan (with the uninvited help of No. 4 son) tries to answer such questions as Where's the body? How can a dead man walk? And how can a secret murder be done in full view of detectives and witnesses?
November 5, 1876 in Washington Township, Buchanan County, Missouri, USA
23 February 1887, London, England, UK
July 23, 1911 in Seattle, Washington, USA
16 December 1903, Charleroi, Pennsylvania, USA
13 November 1906, New York, USA
28 April 1874, Warrensburg, Missouri, USA
August 8, 1920 in Phoenix, Arizona, USA
2 December 1875, Munich, Bavaria, Germany
8 May 1893, Boston, Massachusetts, USA
November 21, 1911 in New London, Ohio, USA
November 15, 1902 in Frankfort, Illinois, USA
29 April 1896, Tacoma, Washington, USA
26 February 1891, Philadelphia, Pennsylvania, USA
March 3, 1880 in New York, New York, USA
September 3, 1902 in Monroe, Louisiana, USA
October 3, 1921 in Santa Ana, California, USA
