Two-faced

You are two-faced.

The story was a two-faced lie that she told you to make you angry with me.

You're a two-faced, conniving git.

Don't trust him. He's very two-faced.

That guy is two-faced.

Because Tom is two-faced, it's better to be careful.

Tom is two-faced, isn't he?

I hate two-faced communities.

Fierce Juno's hatred rankles in her breast; / the two-faced house, the double tongues of Tyre / she fears, and with the night returns unrest.

Mary is two-faced, isn't she?