Planning-Initial Ideas for Thriller opening

Some ideas we came up with were :

1)

location : London , shop 

props : mannequins 

A significant amount of people have been reported missing in the last 2 months , without any explanation they all just seem to have vanished. 

Soon after , a new store opening is being launched when people start to notice over time that some of the mannequins begin to resemble some of the lost people . Later it is confirmed that in fact they are the remains of the missing people.

2)

Location : london , house 

props : fake baby

A couple accidentally uncovers a baby mill as they visit a fertility clinic. They are pursued by the Eastern European gangsters who run the mill. They must choose to take up the gangsters on their offer to sell their baby and then be no longer able to turn them in as they will go to prison themselves or will they choose to give their child away to keep it safe even if they are killed.

3)

Location: outside , alley way

props : Knifes , pens

A kid murderer (around 12-13 yrs.) whose mental abilities are exceptionally well developed and leaves her signature (any symbol) on the victim. Women in these situations can be better and more spooky villains. Could be serial murders.