The Grinder - Season 1 Episode 3 -

Convinced that the only explanation for Claire’s non-interest in him is that she’s a mole, Dean tells Stewart that Claire is sharing secrets with a rival firm. Although Stewart dismisses the accusation, Dean is set on proving his brother wrong. Meanwhile, Deb and Claire strike up a friendship, the gossipy nature of which propels Stewart to question whether Claire can be trusted after all.