I read the film "If Lucy Fell" was the first movie in Eric Schaeffer's trilogy of movies about relationships. "Fall" and "After Fall, Winter" are the second and third movies. I purchased all three movies at the same time, having only seen "After Fall Winter" at the time of the purchase. After watching all three it was immediately apparent there is basically no connection between the first movie and the other two films except the NYC location/connection, the fact all three movies are about fantasy relationships, the subject of suicide is mentioned or is the focus in the plot, and Eric Schaeffer wrote, directed, and starred in all three. I guess that could make the three films a trilogy but to me the Lucy movie seemed to be writing practice for the other two, each of which is more deeply intimate, brilliantly intelligent, and significantly darker. "Fall" and "After Fall, Winter" are connected both by the main character and the story line. There is no such connection to "If Lucy Fell."
"If Lucy Fell" is a light, predictable relationship movie with quirky characters whose thoughts about relationships are rather superficial. My wife, who is a big "rom com," fan did not find the movie funny at all. She appreciated it for the light treatment of relationships and the kids in the film, but knew within minutes how it would end. She even said so out loud. Once she reframed her expectations though she enjoyed the film. I fell asleep and had to watch the missed parts later.
If you want a light relationship film with a bit of quirkiness, get "If Lucy Fell." If you want two brilliantly intimate and erotic films that deal with people's harbored secrets, buy "Fall" and "After Fall, Winter."