The Butler Did It - S1.E10

Three wealthy, spoiled and unruly children become the target of Brenda's investigation when their stepmother is murdered and the family butler seemingly commits suicide shortly thereafter. Riding heard on the trio is their family attorney, who cleans up their messes and provides them with alibis. Convinced the butler was actually murdered, Brenda sets out to discover which of the children committed the murders, and finds the real killer was someone altogether different!