A young woman is thrust into the world of old money and deadly secrets after accepting a nanny job from a handsome widower.

While bonding with the other nannies, Elena learns that the Wards' previous nanny vanished without warning. Elena continues her search of The Greybourne and discovers a shocking truth.

Elena snoops around Tory's apartment while helping Darcy and Bennett, which leads to an unexpected discovery in the secret room. Elena is rattled by a surprise call from her past.

Elena becomes paranoid that she's constantly being watched. Ginny and Elena bond while cleaning out Allie's closet. Elena confronts her past.

On Allie's birthday, Tory, Matthew, and Jasper try to find the best way to confront their grief and honor her memory. Elena discovers someone she trusts is lying to her.

Elena sneaks into a masquerade ball hosted by the Greybournes. Roman searches Mrs. Ivey's apartment. Ginny confronts Elena about her identity.

A blackout at The Greybourne traps Elena, Roman, Bennet, Ginny and Kim in the attic. Tory and Matthew grow closer. Alex makes a disturbing connection.

Elena makes a big decision about her future, and a shocking revelation about Jocelyn's history at The Greybourne is revealed.

Elena's cover is threatened when someone from her past unexpectedly shows up at The Greybourne.

In the season finale, alliances are tested, and new ones are formed. The Greybourne will never be the same after a tidal wave of truth finally comes out.