Movie Idea "Waxed Flowers"

Genre: Thriller
Characters:
Adam Winters-neurotic mentally/socially challenged late teenage boy
Mary Winters-Adam's little sister
Andrew Dahmer-boyfriend of Mary
Alice Winters-mother, nurse
Plot: A local socially inept simpleton named Adam Winters lives as a shut in taking to a hobby of growing flowers indoors and at the flower's peak taking them out of the soil and preserving the flowers in wax. His slightly younger sister Mary gets date raped at age 15 in her bedroom next to his by a guy posing as Adam's friend named Andrew, Adam easily distracted doesn't notice Andrew and Mary appear missing from the activity the three normally engage in like eating and watching tv, walking, riding bikes. When he finds out he shuts down but no one seems to notice as she marries Andrew at the age of 18. Adam unableto focus on getting work drives out to the school playground seeing girls of 11 or 12 staying safe away from the schoolboys. Well trusted at night he takes little girls from the park offering a ride home. Takes them to an empty dilapidated house after they fall asleep in the car takes out his blanket and suffocates them in their sleep barely giving them time to wake up and fight back. He manages to kill for a couple of weeks keeping the bodies unscarred wrapped in sheets taken from his mother's hospital and placed in a 6ftx6ftx6ft hole under the floor boards of the empty house. Andrew catches him on a night watch and reports him to the authorities ignoring Mary's plea to get him psychiatred help. Adam is arrested and brutalized in prison as he awaits an appending death penalty in 15 years.