Individual film idea

individual film idea 
 My first film idea is inspired by a independent short film called Amy's Torch (http://www.youtube.com/watch?v=01AI0lAq_uY&list=HL137890268) 
-A Girl aged 5-6 is telling her mum about the "scary thing" under her bed 
-when its the girls bed time the mum checks under her bed.
- scene cuts to woman running around a house looking scared
- a man with a knife is running after her
- woman runs into daughters room (daughter is at a sleep over) man kills woman by stabbing her multiple times and shoves her under the bed.
-scene cuts back to the bed where the mum is crouched down
-Mum's dead body is under the bed.
-Mum stands up looking confused and scared, fades away into wall as she steps back.