The unimaginable happens

Jisoo and Haein have been married for 4 years. Young, millionaires, healthy and in love with each other, until something unimaginable happens.

Meanwhile, Jennie and Lisa had been dating for at least 10 years, since they were teenagers, and had been living together for just over 6 years. Even with the difficulties and needs that they constantly went through, they had a daughter through artificial insemination, little Lia, only 5 years old, but something totally unexpected also happens.

How will fate make these paths cross?