Michael Redgrave is the local boy done good, when he wins a scholarship to go to university to train to be a teacher. Unfortunately, he has fallen in love with the rather fickle "Jenny" (Margaret Lockwood) who has a bit of a venal streak. Curtailing his studies, he returns to live with her in his boyhood town intent on improving the lot of his community - but he is soon disillusioned when he sees his wife still keen on her flashy old flame "Joe" (Emlyn Williams) and that his elderly father looks set to have to work the mines for years to come... He accidentally discovers that the mine is unsafe, and determines to bring this to the attention of the council to avert disaster, but will they listen? Carol Reed allows this story plenty of room to breathe. Though not complex, we can see the characterisations develop as the story seems to head, unstoppably, towards disaster in quite a compelling fashion. Redgrave, Williams and Allan Jeayes as mine owner "Barras" work well to create a solid, if a bit dryly told, story of greed and exploitation with some superbly claustrophobic mining photography to add authenticity.