[You're trying to convince someone there's something wrong with the place](Almost whispering):
"Look... this is going to sound crazy but you're dreaming.. Everything seems off because it is, I've been through this before.."
"Every time he was done with somebody they'd vanish, but not us! I can't think of any reason he'd still want us here."
"I've already tried that. I think he's doing something to me, I can't wake up."

[After coming to a realization of the danger you're in you try to escape and reach for the doors. THEY'RE LOCKED]: "Hey! Let me out! I can't be here! Please! You have to let me go!" (Make up stuff if you want.)

[You're in the verge of tears, trying to apologize for killing someone years ago]: (This one you can just improv. Use the example if you're unsure.)
Ex: “I swear I did not mean to do it. It was dark outside, I couldn’t see you, and by the time the paramedics got there it was too late!”