No sleep til...

My child no longer wants to go to sleep, ever, and I want to claw my eyes out and scream. It's like she's an infant all over again, where she won't nap unless I am holding her or in some way restraining her. And at bedtime, she's all over the place, doing all kinds of things, often not falling asleep until after 9pm. For a brief period of time, I had a kid that slept. What the heck happened?

I am hoping this is one of those things called "a phase." Because if it's not, there might be "a homicide."