Two parallel stories about people trapped in illogical endless spaces: two brothers and a detective locked on an infinite staircase, and a family locked on an infinite road... for over 35 years.

Alejandra and her dad Roberto have just moved to town. She is new at school, he has a new job. Starting over is sometimes complicated when you have left so much behind.

Valeria is 17 and pregnant. She lives in Puerto Vallarta with Clara, her half sister. Valeria has not wanted her long-absent mother, April, to find out about her pregnancy, but due to the economic strain and the overwhelming responsibility of having a baby in the house, Clara decides to call their mother. April arrives, willing to her daughters, but we soon understand why Valeria had wanted her to stay away.