double-crossing

What I think he either was naive about or didn’t understand was the moral compromises that would come from a job that is centered in a world of deception, violence, lies, double-crossing.

She also played a double-crossing hotel detective inspector as well as a member of a wedding party singing purposefully off key lyrics, inspired by “Espresso,” to expose bad behavior at the bachelorette party.

People loathed her double-crossing, despised her blind self-serving moves and they really, really hated her hair.

Within a decade, he was double-crossing the bureau.

Ms. Ernst called firms that offshore technology to China “double-crossing companies.”