Police officers fatally shot a woman inside a Queens home Monday after she called them to the location and lunged at them with a knife, the NYPD said.

It happened shortly before 5:35 p.m. Monday at a house on 69th St. near 52nd Ave. in Maspeth.

Police said a 54-year-old woman, who was identified by her boyfriend as Susan Muller, identified herself as the 911 caller, met two NYPD patrol cars in front of the house and told officers she believed an armed woman was inside her Maspeth apartment.

When officers entered the second-floor apartment of the home to conduct a search, according to authorities, the woman entered the apartment behind the officers and lunged at them with a knife.

NYPD Chief of Detectives Dermot Shea said body camera footage the department reviewed showed that an officer told the woman to put the knife down before shooting her three times in her torso. The woman was pronounced dead at the scene, and the officers weren't reported injured.

Shea said the entire incident inside the upstairs apartment took place in about 50 seconds.

Police said a kitchen knife, seen on the right, that was about 10 inches long was recovered at the scene.

Muller's boyfriend, Eddie Rogers, says he believes alcohol is to blame. 

The retired NYPD officer says they got into a fight Monday and he left the home, and returned to see what happened. 

"I was devastated, devastated because of all the conversations I had with her in the past, devastated because I couldn't believe that she would ever do what the police said she did, but I also know that the police officer that came into this house, his goal wasn't to shoot and kill somebody when he came in," Rogers said. "If she didn't drink yesterday, this never would have happened."

Rogers say Muller grew up in the neighborhood and has one son who lives in Florida.

An investigation is ongoing.