Retired detective Laura goes back from her isolated mansion to investigate a dark murder This is a late sequel in which a retired Laura (Maria Pujalte) returns into action when the murder of an University Principal (Joaquin Climent) happens . Laura Lebrel is a brilliant homicide detective , as he solves the most twisted crimes while balancing a very busy personal and family life. Again here shows up Martin Maresca (Oriol Tarrasón) , her handsome and loyal colleague , as well as cop Lydia MartÃnez (Laura Pamplona) .