The Second Floor Mystery
| MPAA Rating: | NR |
| Genre: | Comedy, Mystery |
| Country: | United States |
| Directed By: | Roy Del Ruth |
| Written By: | Earl Derr Biggers, Joseph Jackson |
| Cast: | Claire McDowell, H.B. Warner, Grant Withers, John Loder, Loretta Young, Frank Austin, Crauford Kent, Claude King, Paul Panzer, Sidney Bracey, Cosmo Kyrle Bellew, Judith Vosselli |
| In Theaters: | Apr 26, 1930 |
| Runtime: | 58 minutes |
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