Terence Morgan arrives in England, intending to find Esmond Knight. Knight is the only scientist around with the know-how to perfect a process for hardening steel, a process worked on by a dead man in America. Morgan's progress is hampered -- though not much -- by stolid police inspector Raymond Lovell, and aided by Joan Rice, a nurse who quit working at a doctor's sanatorium.... who recently pronounced Knight dead.
It's a light-hearted adventure yarn in which Morgan keeps a step ahead of everyone else while he tries to figure out who's dead, who knows what, who he's claiming to be at the moment, and where the formula is. It's a pleasantly fast-moving second feature that takes only 70 minutes.