A Massachusetts mother accused of killing her three young children is now claiming that a terrifying voice in her head urged her to harm them — and that doctors failed to recognize the warning signs before the tragedy unfolded.

Lindsay Clancy, a former labor and delivery nurse, is charged with murdering her children — Cora, 5, Dawson, 3, and 8-month-old Callan — inside the family’s home in Duxbury on January 24, 2023.

In new lawsuits filed in Norfolk Superior Court, Clancy and her husband, Patrick Clancy, accuse several mental health providers of medical negligence and wrongful death, arguing that doctors ignored clear warning signs as her mental health deteriorated in the months leading up to the killings.

According to the filings, Clancy began hearing a disturbing voice in her mind that repeatedly told her to kill her children and take her own life.

“You should harm the children, you should kill yourself, you will never be the same, the only option is to die,” the voice allegedly told her, according to the lawsuit.

Prosecutors allege that Clancy strangled the children with exercise bands after sending her husband out of the house to pick up takeout food.

When Patrick Clancy returned about an hour later, authorities say he discovered the devastating scene.

Investigators say Lindsay Clancy had attempted to take her own life by cutting her wrists and jumping from a second-story window.

She survived the fall but was left paralyzed from the chest down.

Clancy now uses a wheelchair and is being held at Tewksbury State Hospital while awaiting trial on murder charges.

She has pleaded not guilty.

Her murder trial is scheduled to begin July 20.

The lawsuits filed by the couple paint a grim picture of a woman whose mental health allegedly spiraled after the birth of her youngest child in 2022.

Clancy had previously struggled with anxiety and postpartum depression after her second child, but the filings claim her condition worsened dramatically in the months following Callan’s birth.

She reportedly grew increasingly fearful about returning to work and sought psychiatric help in September 2022.

According to the lawsuit, the medications she was prescribed made her symptoms worse.

Clancy allegedly slept only about three hours a night and began experiencing intense suicidal thoughts.

Patrick Clancy told doctors that his wife was having “horrible thoughts” throughout the day and had admitted to both him and her mother that she was thinking about harming their children, the lawsuit says.

Despite these warnings, the family claims medical providers failed to intervene appropriately.

One allegation in the lawsuit states that Clancy’s psychiatrist spent only about 17 minutes with her during appointments, including a visit the day before the killings.

The filings also say Clancy repeatedly sought help as her condition worsened.

She reportedly visited emergency departments, checked herself into inpatient treatment and called crisis hotlines while telling providers that the medications were making her symptoms worse.

“Lindsay Clancy did everything a mother in her situation could do,” her attorneys wrote in the lawsuit.

“She recognized something was wrong with her. She sought medical treatment. She went to emergency rooms. She called crisis hotlines. She admitted herself to hospitals. She took the medications prescribed to her.”

Before the tragedy, the filings say there had never been any indication that Clancy was capable of harming her children.

She grew up in Connecticut and was described as academically successful, eventually spending nine years working as a labor and delivery nurse at Massachusetts General Hospital.

Family members told investigators she was deeply devoted to her children.

Her mother-in-law described her as a “fun loving, doting wife and mother” who adored her family, according to the lawsuit.

Clancy’s attorneys argue that the devastating events could have been prevented if medical providers had recognized the severity of her mental health crisis.

“Lindsay now faces a lifetime of physical disability, psychological trauma, and the unbearable grief of waking up every day knowing she killed her children,” her attorney said in the filing.

The lawsuits seek unspecified damages and a jury trial.

Meanwhile, Clancy is scheduled to undergo a forensic psychological evaluation in April before returning to court on April 23 as the criminal case continues to move toward trial.