Mystery-obsessed Nikki Collins (Deanna Durbin) is alone on a train to New York City. It stops at a station and she witnesses an apparent murder outside her window in a nearby building. The police don't believe her. In frustration, she recruits the help of popular mystery writer Wayne Morgan (David Bruce) who is looking for fresh material. He isn't much more helpful and she decides to look for the scene of the crime herself. She just won't let it go. She befriends Jonathan Waring (Ralph Bellamy), nephew of the murdered tycoon.
Durbin is adorable and fun in her mystery solving like a blondie Nancy Drew. She's a cross between that and a valley girl. It's a series of funny close-calls and misunderstandings. She sings a few songs. It's very light despite the murder mystery. It's easy to follow. It may be too easy. There are still some questionable issues. Even if the family doesn't know Margo, somebody at the club should know what she looks like. She keeps barely escaping which says more to the incompetence of the bad guys.
Durbin is adorable and fun in her mystery solving like a blondie Nancy Drew. She's a cross between that and a valley girl. It's a series of funny close-calls and misunderstandings. She sings a few songs. It's very light despite the murder mystery. It's easy to follow. It may be too easy. There are still some questionable issues. Even if the family doesn't know Margo, somebody at the club should know what she looks like. She keeps barely escaping which says more to the incompetence of the bad guys.