Engineer Alex (Daniel Bruch Daniel Br ü hl) returns to work in his hometown after 10 years and then designs a new robot program for his alma mater. When he meets a little girl named Eva (Claudia Vega Cl à udia Vega), he thinks she is different and invites her to help him with his work-to study Eva's behavior patterns in order to complete the program of the perfect child. Under contact, Alex discovers that Eva is the daughter of his ex-girlfriend Lana (Mata Etuna Marta Etura), who left without saying goodbye ten years ago, making Lana sad to marry their working partner David (Alberto Amman Alberto Ammann). Because of Eva, re-contact with Lana, the love triangle that has been sealed for ten years seems to be repeated, and Alex's work also encountered a bottleneck, an accident, let Alex discover the sad secret of Eva.