I thought I could trust her, but she 'double-crossed' me.
They're a couple of dirty 'double-crossers'.
(..) believe me? I'm sure you'll be able to convince him. And if, my dear Pepi, you double-cross me, it'll be a very long while before you give your next piano recital. Yes? You asked me to keep you informed of Lady Litton's activities. Yes. Well, she's going skiing at . (..)1975 The Return of the Pink Panther