The case with nine solutions

by J. J. Connington

"The Case with Nine Solutions" by J. J. Connington is a detective novel published in 1928. When a doctor arrives at the wrong house on a foggy evening, he discovers a dying gunshot victim. Chief Constable Sir Clinton Driffield begins investigating, but before he can solve the first murder, a second killing occurs next door. Two more deaths follow as Driffield methodically works through nine possible solutions to unravel the connected murders plaguing a small town.