Deanna Durbin

A young woman on a New York-bound train witnesses a murder outside her compartment window. With a passion for mystery novels and the help of a mystery writer, she sets out to solve the case after police dismiss her story. Disguised in the victim's mansion, she uncovers a conspiracy linked to a victim's will, while narrowly escaping a deadly plot and exposing the truth.

Three sisters hatch a scheme to break up their estranged father's impending wedding and reunite him with their mother.