Seraphina gave Theodore seven years of her life, then he ended it to repay a debt owed to another family and married Drusilla instead. Within months, Seraphina's parents were killed in a car crash and her own diagnosis came back terminal. She stopped treatment and set a date to end things on her own terms.
Then she runs into the newly engaged couple. Drusilla, cheerful and oblivious, asks her to help pick out a wedding gown and stand beside her as maid of honor. Seraphina says yes. The wedding date and her euthanasia date land on the same day, and only she knows it.
