Ugh this was really good!! I was really creeped out during the first few episodes but glad I stuck with it. Aside from two little things (the last half hour felt somewhat rushed + Dong Chul should've gotten more credit!), this was such an impressive series.
So is this anything like Younger? Divorced single mum lies about her age and pretends she's a recent grad, since she can't find a job that accepts her 15-year time off as a housewife.