Le Cheval Noir. So Dark the Night is directed by Joseph H. Lewis and written by Dwight V. Babcock, Martin Berkeley and Aubrey Wisberg. It stars Steven Geray, Micheline Cheirel, Eugene Borden, Ann Codee and Egon Brecher. Music is by Hugo Friedhofer and cinematography by Burnett Guffey. Henri Cassin (Geray) is a well regarded Parisian detective who while on a much earned vacation falls in love with innkeeper's daughter Nanette Michaud. However, with Nanette already having a boyfriend, and a tempestuous one at that, true love does not run smooth, especially when murder enters the fray and Ca...