Thunder Below on AllMovie

Tallulah Bankhead's first Hollywood movie was this romantic-drama weepie, in which she plays Susan, the unhappy wife of oil rigger Walt (Charles Bickford), who labors in a Central American oil field. The bored Susan falls in love with Walt's good friend Ken (Paul Lukas) but keeps her husband in the dark about her feelings -- until he's plunged into darkness for real when he loses his eyesight. Susan finds her attentions then wandering yet another man, Davis (Ralph Forbes), and Ken urges her to return to Walt. Unable to reconcile her emotions and ashamed of her faithlessness, Susan throws herself from a high cliff.