Eve Harlowhas an incredibly captivating screen presence, effortlessly shifting from charm to ruthless manipulation.

That’s what makes her casting as a member of Watson’s team so compelling.

Derian is clearly a brilliant doctor, buther dark past keeps her at a distancefrom those around her.

Eve Harlow as Dr. Ingrid Derian, holding out a piece of paper in Watson

Image via CBS

Hints of Derians past have surfaced throughout the season, but Episode 2 provided the first major revelation.

After the case of the week wraps, she revisits the waterfront where she had previouslycelebrated her birthday alone.

Waiting for her is Moriarty (Randall Park), finally revealing himself as her mysterious messenger.

Eve Hollow and Randall Park as Ingrid Derian and Moriarty, standing by a pond while Moriarty holds out a small bag in Watson Episode 7

Image via CBS

Given that weve already seen him manipulate Shinwell (Ritchie Coster),we know he isnt bluffing.

Could this be what Niles was referring to?

Or are there more literal skeletons that Derian has been trying to keep buried?

Custom image from Jefferson Chacon of Morris Chestnut with a slight smile for the CBS series Watson

What will Moriarty ask her to do, and to what lengths will she go to bury the truth?

Or has Moriarty met his match in the enigmatic Dr. Ingrid Derian?

Chestnut also talks about how important Moriarty will be to Watson’s story this season.

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Watson

Morris Chestnut