The Staircase Murders Did he do it? After he calls 911 to report his wife's accident, successful novelist and aspiring politician Michael Peterson becomes the prime suspect in her alleged murder. Details Casts Videos Galleries Posters Title The Staircase Murders Release Date 2007-04-15 Runtime 01 Hours 30 Minutes Genres Crime Mystery TV Movie Production Companies Lions Gate Television Production Countries United States of America Treat Williams... Michael Peterson... Kevin Pollak... David Rudolf... Samaire Armstrong... Caitlin Atwater... Brandon Ray Olive... Todd Peterson (as Brandon... Laura Bailey... Margaret Peterson... Douglas M. Griffin... D. A. Jim Hardin... Brett Rice... Detective Castell... Kate Donadio... Erica... Nina Jones... Kathleen Peterson... Stephanie Honoré... Martha (as Stephanie Hono... Ric Reitz... Bill Peterson... Kyle Clements... Clayton Peterson... Lara Grice... Candace Zamperini... The Staircase Murders (2007) Trailer (Trailer) Original Size (1280x720) Original Size (1920x1080) Original Size (563x845) Original Size (2000x3000) Original Size (1920x2560) Original Size (1000x1500) Original Size (666x1000) Original Size (720x1080)