The bright morning sun streamed through the living room windows of the suburban house.
Evelyn folded a stack of fresh white towels near the quiet nursery upstairs.
Her six-month-old son Noah was sleeping peacefully in his small wooden crib.
Downstairs, her ten-year-old daughter Lily was silently working on a school drawing project.
Everything felt completely peaceful on the surface during this warm Tuesday morning.
However, Evelyn could never truly relax around her cold mother-in-law Eleanor.
Eleanor had moved into their guest bedroom three long months ago after selling her apartment.
She constantly made harsh comments about Evelyn's parenting style and career choices.
Eleanor: You spend far too much time playing with those foolish baby toys.
Evelyn: I am trying to build a loving bond with my young son.
Eleanor: Children need strict discipline, not foolish coddling from a soft mother.
Evelyn took a deep breath and chose to walk away into the nearby kitchen.
She did not want to start another exhausting argument before her husband returned home.
Mark was currently at the local grocery store buying food for their family dinner.
He always believed his elderly mother was a sweet, fragile woman who needed help.
Evelyn poured herself a glass of water while watching the clock on the wall.
Suddenly, Eleanor walked slowly into the nursery upstairs while holding a small blanket.
Lily noticed her grandmother's cold expression from her seat on the carpeted hallway floor.
The young girl felt a sudden chill run down her spine as she watched carefully.
Lily quietly picked up her smartphone from the hall table without saying a word.
She decided to start recording video footage through the partially open nursery door frame.
Eleanor picked up baby Noah from his crib while he was softly sleeping.
The elderly woman held the infant high in the air with a bitter scowl.
Eleanor: Cry harder, little boy, so your mother sees how weak you are.
She intentionally loosened her grip and allowed the baby to fall onto the floor.
The loud thud resonated through the entire house as Noah began screaming hysterically.
Evelyn dropped her glass in the kitchen when she heard the sudden horrific noise.
She sprinted up the carpeted stairs as fast as her legs could possibly carry her.
Her heart pounded wildly inside her chest as terror gripped her entire soul.
She reached the top floor just in time to see the unthinkable happening before her.