Five nursing home staff will be hauled before investigators today accused of neglect.
The charges relate to up to 10 residents at the Parkside House Nursing Home in Northamptonshire, dating back to 2009.
Staff including Phyllis Johnson, who was the home's registered manager and owner at the time of the alleged incidents, is among those due to appear before the Nursing and Midwifery Council in London today.
Deputy manager Maria McKenzie will also answer to charges, alongside fellow nurses Anastacia Maduli, Mary Bisieri Ombui and Girlie Franklin.
Charges include failing to devise adequate care plans, reassessing residents' risk of falls and/or malnutrition, and failing to ensure residents received a varied and well-balanced diet.
Two nurses, Alice Nojozi and Nobuhle Moyo, have already been handed caution orders having faced a Conduct and Competence Committee Substantive Hearing.
Five Parkside residents, aged between 83 and 100, died within two weeks of each other between July 22 and August 6, 2009.
The home is described as a 20-bed nursing home for residents over the age of 65 with dementia or long-standing mental health issues.
A Serious Case Review into the deaths said they died from causes ''considered to be consistent with the effects of severe neglect''.
The report said although there were some warning signs of a decline in standards, it was only when one elderly woman was admitted to hospital that the alarm was raised.
The Northamptonshire Safeguarding Vulnerable Adults Board (SOVA) said an action plan had been put in place to prevent the situation being repeated.