The Secret Fury is a 1950 black-and-white drama film distributed by RKO Radio Pictures, directed by Mel Ferrer.

During the ceremony marrying Ellen and David, a stranger stands up when that phrase "if anyone knows why these two may not be joined..." is spoken. The stranger announces that Ellen is already married. Ellen however insists she is not, and the strain of proving she is telling the truth pushes her mind towards a breakdown and results in the death of the man she has supposedly already married (among others.) Ellen is charged with this death. But David believes in her innocence and sets out to uncover the conspiracy and the reason behind it. Written by Ron Kerrigan