Maria Plenkina, 21, spent a week partying while her child starved to death in their home – on the week of her third birthday – according to reports.
The child named Kristina was found by her grandmother Irina Plenkina, 47, when she brought her birthday present to her home, reports state.
Maria had locked the door on her daughter, turning off the water so she could not even drink at home in Kirov, according to the Russian Investigative Committee.
Irina immediately called the ambulance when she found her a week later but the girl was pronounced dead at the scene.She had been alone from February 13 to February 20.
The distraught grandmother said that Maria had been in touch with her daily on social media telling her that she and the girl were “fine”.
Maria Plenkina has been detained for two months and is under investigation for the “murder of a child using extreme cruelty”.
A committee spokeswoman said: “The girl’s mother said that she deliberately closed the door of the apartment and left the house.”
Mrs Plenkina called her daughter an “actress” and said she would have taken her granddaughter in – had she known she was in danger. She had told her “daily” on social media the pair were fine, Irina told police.
Maria’s mother Irina said: “She lied to me that everything was fine.“
She lied to everyone.“I never thought that Maria could do such a thing.
“If only I had had spotted something was wrong, I would have taken the girl to me.
”There was never any sign of previous abuse, she said.
“She has shown the highest class of professional acting – if you deceive everyone to such an extent,” she added.
“I completely did not know my daughter it turns out.
”The mother – seen in a video in the iron cage of a Russian court speaks quietly and calmly.A neighbour said: “How can a mother be so evil?”