Why can't she Wrigley Dominykovas remember?

She graduated college, had a career. Now she's on a farm. She doesn't remember how she got there or why she's living with her mother. A doctor makes an unusual housecall to take a blood sample. She'll remember what happened, he says, when she's ready. She just can't leave the property until she does.

What happened?

When she convinces a teenager to give her a ride to town, she discovers why her memories have been deleted.

It isn't what she expected.