You and your friends go to Lalapalooza. You're having a great time. You go to a bar, have some drinks, and gradually become intoxicated.
One of your friends meets a guy. Looks like he's in the military, but when your friend asks him what he does, he says he's in "pharmaceuticals". What kind? "Methadone".
Oh. I get it.
Your friend seems psyched. She tells the guy she's interested. He leaves, and comes back with some pills, which your friend takes. Offers some to you, but you politely decline.
Your friend is fairly drunk at this point, so you try to get her to leave, but she wants to stay with her new friend. It's clear that you're not psyched about this, and your friend tells you not to judge her. Your friend ultimately leaves with her new companion, who drives her home. They have sex, and in the morning, the companion leaves.
And your friend dies of a methadone overdose.
The companion eventually flags down a police officer and tells the officer that a girl seems dead, and the police officers confirm this fact and get his story. They then charge the guy with murder. There's a plea. He's sentenced to just short of twelve years in prison.
This trip to Lalapalooza works out poorly for everyone.