Ideas in more detail

Idea one
General idea for the opening: It starts with a close up of a man's face. It will zoom into his cold eyes, they will then flicker to the side and it will change to a wide shot, kissing his children and wife goodbye as he leave to go to work. He will then walk through his office, greeting people as he walks through - obviously a popular man. He gets to his office, closes the door, sits at his desk and thinks. Another close up will be used on his cold, thoughtful face as a voice over of his thoughts speaks a sinister sentence, hinting at his lust for blood.
Setting: In a house, in an environment that looks like an office
Actors needed: The man, a wife, an older son, a younger daughter, various co-workers
Camera: A mix of close ups and wide shots and tracking shots.
Editing: A mixture of long takes with a couple of quick, unnerving short takes thrown in.
Music: Dark and ominous during close ups of the main character, lively and inviting during his interactions with others.

Idea two
General idea for the opening: Close up of a man's face as he says, "they'll wanna know how it happened. Music starts from here. A wide shot of a man on his own in his bed sleeping. It zooms into his face as he slowly opens his eyes. He taps the side four times and puts on his glasses. Gets out of bed. Makes bed and pulls each four corners four times each to tighten and straighten the bedding. He smooths the covers with his palm four times. Showers. Brushes teeth. Phone rings and he answers. He argues with his mother. He grits his teeth back and fourth, back and fourth. Eats his cereal. Grabs a knife from a collection of war memorabilia, touches/grips it four times and leaves.
Setting: In a house/something that could look like an apartment.
Actors needed: The man
Camera: A mix of close ups and wide shots. A lot of close ups.
Editing: A mixture of long takes with a couple of quick, unnerving short takes of his routine thrown in.
Music: Dark and ominous during the entire scene.

Idea three
General idea for the opening: A teenage boy sits on the curb of smoking a cigarette. There is a set of short take extreme close ups of him putting it out violently. A girl walks past as he does so. He looks up and watches her, his eyes interested and focused on her. He gets a vision - an extreme close up of his arms gripping her. He shakes it off and smiles to himself and then at her, she smiles back. He gets up and walks in the opposite direction, smirking knowingly.
Setting: On the side of the road
Actors needed: A teen boy and a girl
Camera: Close ups and wide shots
Editing: Mostly long takes with quick flickers of short takes to creating a mysterious and disturbing feel.
Music: Something calm but dark and sinister sounding (e.g. something similar to talk show host - radiohead)

Idea four - A man with a desire to kill finds himself falling for a woman who seems to make all the dark thoughts go away. Will this woman find away to tame him? Or will everything come crashing down when temptation is too much to bare?
General idea for the opening: A close up from a mans face in profile to show his concentration. And extreme close up on his eyes as they follow the lines he is writing. A wide shot shows him at the table, showing him drawing and sketching something. He closes his eyes. A close up of his face shows his expression as he imagines something, though the audience do not know what. Another wide shot shows him and a window behind him, children skip past behind him outside in the light whilst he remains in darkness, eyes closed imagining. An extreme close up of his pencil upon the paper as he draws. He is finished and drops his pencil. His eyes light up at his own creation. There is an over the shoulder shot showing a detailed drawing of a dead woman. He smiles.
Setting: In a house. The kitchen/dining room
Actors needed: A man, and two children
Camera: Would focus around close ups, extreme close ups, wide shots and the odd over the shoulder shot.
Editing: Would mostly feature long drawn out shots to create tension.
Music: The music again would be dark and sinister throughout.