I've been married for three years and live with my husband in his family home. His mother died from an illness, while his estranged father disappeared long ago, leaving their relationship deeply complicated. One day, after my husband leaves for work, a man claiming to be his father suddenly appears. Expecting a happy reunion, I present him as a surprise, only to see my husband's expression turn furious. We reluctantly let the homeless father-in-law stay for one week, but his disturbing habits reveal themselves more each day.