Idea For Thriller Opening Sequence

There is a family living in an isolated house, in the middle of nowhere. Their Grandparents recently died and left them a large amount of money.

There is a thief/murderer who is out to get the money. He has succeeded so far, in killing many and receiving their fortunes, which is revealed on the news at the beginning of the film. He shares the money with his partner, who is heard at the beginning of the film informing the killer that the parents are out of the house (the house which holds the money). He tells him that the kids will be at the house, and that he should kill them if he needs to. The money however, isn't mentioned; creating an instant mystery as to why this house is so important.
The killers face isn't revealed throughout the entire opening sequence, creating suspense and another mystery. The only thing that is certain from the beginning is that he has killed people previously.

The opening sequence starts with the titles, which overlap the film clips. Dead bodies are shown, that he has previously killed, with supposed news readers informing the viewer as to how they died, stating that 'another' body has been found. Implying that they have been murdered by the same person. As the titles continue to come up on screen, they overlap clips of an extreme close up of the a mans lips answering a ringing phone, which tells him to go to the house.

After the director, writer and cast have come up, the title of the film shows on a black background. Before cutting to an establishing shot of the house.

The kids then arrive and realise that their parents are not there, before getting locked in the house by the murderer. I think that the opening sequence should end just when they see the killer from the other side of the glass. Or something, yar?

Dunno what to call the film yet ???