Christina Ricci is killing it as a 19th-century drop dead gorgeous axe murderer in “The Lizzie Borden Chronicles” on Lifetime this month.

Now she and hubby James Heerdegen have something else to celebrate — the purchase of a four-bedroom, three-bathroom townhouse at 67 Adelphi St. in Fort Greene, which was asking $1.99 million.

The 2,205-square-foot home was built in 1901. It’s on a 25-foot-wide semi-detached lot.

There’s a deck off the open chef’s kitchen that leads to a large backyard.

The front parlor boasts a living area with a gas-burning fireplace, solid oak floors, and 11-foot ceilings.

There’s also a separate garden apartment that is leased until May.

We’re guessing that the happy homeowning couple will transform the space back into single-family status. Listing broker Abdul Muid, of Compass, declined to comment.