This one’s basically cops and robbers meet the Post Office. It opens like a recruitment reel for heroic mailmen, then turns into a tidy little noir about a heist gone wrong.
Alan Ladd plays the inspector with his usual stone-faced charm, chasing crooks who’d probably fear paperwork more than prison. Phyllis Calvert shines as the nun who witnesses too much, Jan Sterling adds grit and glamour, and Lewis Allen keeps it taut while John F. Seitz fills the frame with rain and cigarette smoke — all the noir essentials.
It’s half recruitment ad, half thriller, but surprisingly it works. A clean, oddly wholesome noir that still finds time for guns, guilt, and old-fashioned moral duty. Think of it as first-class crime: sealed, stamped, and unexpectedly fun.