Goofs

Ruthie's phone dies and then in the very next scene she's getting an Uber on it.

When Maddie and Cal subdue Ruthie, they use a shirt tie her hands behind her and force her into a bathroom, when the scene cuts back to Ruthie, she's no longer bound when she bangs on the door.

But her hands are only loosely restrained. It's perfectly believable that without Maddie's grip on her arms the shirt that is binding her simply fell off.