Victoria Winters, a young governess, arrives at mysterious Collinwood mansion just as brutal attacks begin terrorizing the Town. While she forms a connection with an enigmatic relative, she must uncover dark family secrets before more victims fall.

Dr. Julia Hoffman races to cure Barnabas of a dark affliction as mysterious deaths plague Collinsport. With authorities closing in and secrets threatening to surface, Barnabas must protect himself while pursuing a connection with Victoria Winters.

Woodard's suspicions threaten to expose Barnabas, who continues to pursue Victoria. And as ancient curses collide with modern medicine, Julia's experiment reaches a critical turning point that could either save Barnabas or destroy him forever.

As a storm rages over Collinwood and the town is rattled by another mysterious death that hits too close to home, Victoria uncovers an old diary that may hold dark family secrets. And Maggie Evans' psychic visions reveal a threat to Roger Collins.

As Barnabas' romance with Victoria blossoms over an antique music box and costume party preparations, Julia's jealousy leads her to sabotage his medical treatments. Meanwhile, Carolyn's pursuit of Joe triggers disturbing visions from Maggie.

Barnabas embraces his vampiric nature once more, ensnaring Carolyn and plotting against Julia. During Elizabeth's costume party at Collinwood, Barnabas's sinister intentions become clear as he avoids Victoria and focuses on revenge.