(In)visible bond

Lucy Chen is a 40-year-old doctor. She is one of the best surgeons. Every patient immediately falls in love with her. Every child she treats draws her a picture. There is no one who does not like her and thank her for saving their life. She is also popular among her colleagues. She has only one close colleague, nurse Tamara. Otherwise, she is not particularly close to anyone else.
She has a boyfriend of 18 years. His name is Emmett, and they have a daughter, Lori. She is 15 and is Lucy's sweetheart. Even though she is 15, she is sensible and does not act out like a typical teenager. Emmett and Lucy are not married. Lucy never wanted to get married, and neither did Emmett. Emmett is a firefighter, but he is often away, and lately he has been disappearing so often that Lucy suspects he has found someone else. Over time, things between them have not been the same as they used to be. For the last 5 years, they have been more like roommates with benefits. But Lucy wanted Lori to grow up in a complete family.

Tim Bradford works at METRO. He is 44. He loves his wife with all his heart. He always rushes into everything. Everyone tells him that one day it will come back to haunt him... especially his 15-year-old daughter, Ave. Ave is everything to him. She is the center of his life. He has been alone with her since she was a baby. Her mother packed up and left one day. No one knows where she went or even if she's alive. Tim got used to being alone with Ave. Since Isabel ran away from him and little Ave, he hasn't had anyone else. He doesn't want anyone else.