The Adventures of Sir Lancelot is a British television series first broadcast in 1956, produced by Sapphire Films for ITC Entertainment and screened on the ITV network. The series starred William Russell as the eponymous Sir Lancelot, a Knight of the Round Table in the time of King Arthur at Camelot.

Fed up with her wealthy but abusive husband, Tom (Basil Dignam), young English homemaker Laura Wilton (Anne Heywood) conspires with her lover, American Army captain Dave Dillon (Robert Arden), to have her boozy spouse meet an "accidental" demise. But a nosy copper (Denis Shaw) suspects foul play, and soon the lovers' crafty scheme deteriorates into fear, distrust and betrayal. Paul Dickson directs this vintage noir thriller.

A luminously beautiful, provocative young woman is rescued near a small fishing village on the Spanish coast. The scene is set for a drama of dangerous passion that threatens to tear apart the simple, tranquil life of the village forever.