Phillip Diamandis pulled into his fiancé's driveway, exhausted. It had been a long day on the job. He was an assistant principal at the local high school and was forced to suspend two teenagers in one day. They had been fighting over gummy bears, for god's sake. Gummy bears. Phillip had a specialist's degree in two sciences, yet he would never understand the way an adolescent's mind worked.

The man neatly parked his Honda Civic in the garage and removed the key from the ignition. Feeling like he weighed a hundred pounds, Phillip dragged himself out of the driver's seat and wrestled his satchel around his shoulder. Not wanting to think of all the paperwork he'd have to file the following day, he slammed the door shut and pushed the thoughts out of his head. Instead, he focused on his fiancé's daughter, Lacey. She was a freshman this year and the sweetest one, at that. What with her outgoing personality and dazzling smile, she was nearly perfect at everything, including drama and dance. Her teachers never ceased to talk good of her and her grades were fantastic. Phillip never imagined he'd want kids, but Lacey completely changed his mind. Grinning now, he opened the door and stepped inside.

In seconds, all his belongings were dumped on the kitchen table. "Lacey?" he called up the stairs. Hearing no answer, he assumed she busy doing homework or perhaps not home from rehearsals yet. Phillip turned around and nearly ran into his step-daughter. "Oh, Lace!" he exclaimed, stepping back. "You scared me."

Lacey brushed a piece of brown hair behind her ear and smiled warmly. "I did?" She threw her arms around him. "Did you have a nice day at work?"

Phillip sighed. "Actually, it was-" His words were cut off by the girl abruptly slashing his throat with a large kitchen knife. Instead of complaining to his wife-to-be's daughter, he was slumped on the tiled floor, blood gushing from his neck. Phillip gagged, trying to speak. "Oh, don't talk. Please." Lacey said, rolling her eyes.

It was Wednesday morning and Sam Winchester was drinking coffee and reading the newspaper headlines for anything interesting. "Jealous Gummy Bear Loving Teens Get Suspended" screamed one article, causing the young man to chuckle. Another headline, however, made him stop laughing immediately. "Local Man Killed, Step-Daughter Missing and Invisible Killer on the Loose?"

After Sam had finished reading the article, his older brother, Dean, stumbled into the apartment's kitchen. He sniffed. Sam glanced up from the newspaper and recoiled in horror. "Uh, dude? You look... like shit."

Dean rolled his eyes. "And you have coffee breath."

It was true though. Dark shadows were hiding underneath his green eyes and he was obviously flushed, spots of crimson painted across his cheeks; his freckled nose was tinged pink. Sam cocked an eyebrow and pursed his lips. "Are you sick?"

"What kind of dumbass question is that? Of course not." Dean told him gruffly, sitting down at the table. His brother gave him one more disbelieving look before continuing. "Okay, well, call your angel. I think we have a case."

"My angel? Why's he got to be my angel?" he grumbled, but complied. "Cas? Get your feathery ass down here. Sam says he found us a-"

"Case?" the angel finished for him. He was sitting at the table, next to Dean. The man jumped. "Cas?! Don't do that!"

Castiel squinted. "I don't see what you are referring to, Dean."

Sam cleared his throat. "Anyway, there's this man, Phillip Diamandis, who was killed in his home last week. They don't know who the murderer was, so they've dubbed him 'The Invisible Killer'."

This earned both an eyeroll and a sneeze from Dean.

"His step-daughter, Lacey, has apparently been kidnapped. They haven't seen for seven days and the town's been searching since her disappearance. I'm thinking we should talk to the fiancé."

Dean nodded. "Absolutely right." He coughed a little and cleared his throat. Castiel narrowed his eyes. "Dean, are you-"

"No!" the older brother shouted hoarsely, scooting back his chair so as to avoid Cas' hand, which was making a beeline for Dean's forehead.

"You seem fevered." the angel noted, reaching forward again. Dean gently slapped his hand out of the way. "I'm fine."

Sam sighed. It was just like his brother to ignore his own well-being. "I'm going to shower." Dean announced, quickly getting up and walking towards the bathroom. "Heh... atchoo!"

"Bless you!" Sam called cheerily.

"Shut up!" his brother yelled back.