When Molly commits suicide, her mother uses technology to relive her experiences and investigate why she died.
Elder sister, Spring, seeks her origins before heading to university, Autumn, the mother, grapples with conceiving a child through artificial insemination, Summer, the younger brother, tries to engage with a paternal figure he barely knows just before his military service, and Winter, the father, desperately tries to change his fate as problems mount up.
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Kao runs away from home, so he goes with people knock on his door to pay for sex without knowing that he would end up falling in love with Pete, the guy next door who is actually the escort all the customers are knocking for.
