Civil servant Morell is soon to be hung for murder, but offers to help catch a foreign spy he was feeding information to in exchange for freedom.

Almost very good, but let down by a desperately uninteresting romantic subplot between Morgan and a very shrill Donlan, which destroys the pacing and grinds the film to a halt each time the plot goes back to it. A shame, as the plot is quite good, and Morell and Morgan work well cast against their usual types.