Drafting and Planning: Plot ideas

Through my pitch feedback I have decided that I have over complicated my plot line very much so I am going to step back and re-evaluate my plot by changing some plot details so I can film it. Some of my peers questioned how I am going to film a clock shop and to be honest, I hadn't thought of that, so I have decided that I am going to change these details.

MY NEW PLOT LINE:


The film will start with a flash back of the main antagonists childhood. It seems like he is a fairly normal boy who is very close to his younger sister and she is his world. But all that changed one night. Their parents were away on business and he was running late home on a Tuesday night as it was Halloween. When he arrived home, it was getting late and as he went to open the front door with his key, he noticed it was open already. He entered the flat to find everything was smashed and then he noticed some blood. And lying motionless on the floor, he saw his little sister with a knife sticking out from his chest.The police finished their inquiries and couldn't charge anyone because there was no evidence. The police suspected it was a robbery gone wrong. The only thing the police had was the eye witness that said a gang of girls and boys had been up to mischief for the last few weeks in the local area. The main character knew it was those group of teens. He wanted to get revenge and make them pay. He finds the group of teens. There's about 5 of them. He photographs them and turns them into a profile on each of them. He goes after them one by one, stalking each of them and kills them leaving a clock next to each dead body. He takes a missing poster for each victim and uses them as a trophy in his room and puts them a round his clock. Once he has killed them all and avenges his sister's death, he knows the police are closing in on him so he kills himself at his sister's grave. He leaves a note saying "Time Ran Out For Them". 

This is going to be so much easier to film as I will not have to find a clock shop as a location and I can find a girl to be the little sister of the main character.

TRAILER:

Flashbacks of the main characters childhood with younger sister
Sister is found dead
Main character finds out who it was who killed her
Makes profiles on each character and puts them on his wall
Goes after, stalks and kills a couple of them. 
One of the dead bodies will be seen but you will see one of the gang members being chased but wont see the murder instead a clock will be shown and it will go off signalling a murder has taken place