When will your number come up?

Some people may thing that this is the end of when it says, “When will your number come up?” Most people would think it this just a short film, but no it’s not. I thought about how I could have this writing pop up at the end of every killing or be placed on objects that are around discreetly like a calling card. This could bring the film to make a sequel; I thought how if every time the assassin killed someone I the writing “When Will Your Number Come Up?” this is how the name Bingo was made. I was going to make a Bingo calling card, which loads off assassins are trying to get the number. Numbers relate to people. When the assassin received the call on Skype, the person who gave the protagonist the job, he doesn’t say a name of the target he gives a set of numbers.  "I need you to kill subject matter 521" This could be anyone. He gives further instructions on what the target looks like and how you will recognise him.