Mrs. O'Malley and Mr. Malone (1950)

Harriet O'Malley finds herself embroiled in a thrilling mystery while traveling on a train to New York. As tensions rise and passengers become increasingly suspicious, she takes it upon herself to unravel the clues surrounding a murder that has occurred on board. With sharp wit and determination, Harriet navigates a web of intrigue, determined to uncover the truth before the train reaches its destination. Her journey is filled with unexpected twists and colorful characters, making for a captivating ride full of suspense and clever deductions.