4.50 from Paddington (2018)

Toko Amano worked as a detective, but to take care of her sick husband she quit her job. After her husband passed away, Toko Amano now works as a crisis management expert. 3 days ago, Toko Amano's former mother-in-law rode on an express train with beds. She witnessed a man strangling a woman and told the train conductor, but he thought she imagined it. The police later searched for the woman's bo...