From IMDB:

A five-part miniseries that revolves around the disappearance of a young mother in a quiet British suburb and the circumstances that leave her children abandoned far from home.

From Netflix:

Each season of this innovative crime thriller focuses on the most significant five days in a particular police investigation. The series delves into variety of cases, including missing persons, infant abandonment and suicide.

If your are looking for a British detective mystery TV series that is well-written, well-acted, and has a good beginning, middle, and ending, then “Five Days” is for you. HBO streams the series.

By now, if you have watched enough British TV series, you will recognize many of the British actors:

Matt Wellings (played by David Oyelowo [Louis Gaines in “The Butler”]) has a wife Leanne and three children, the youngest of which is Rosie. One day Leanne and Rosie go missing. Among the police we find DS Amy Foster (played by Janet McTeer [Mrs. Dashwood in Masterpiece Classic “Sense and Sensibility”]) and DSI Iain Barclay (played by Hugh Bonneville [Robert Crawley, Earl of Grantham in “Downton Abbey”]). Rosie is soon found. But Leanne’s disappearance is a torture for her parents Barbara Poole (played by Penelope Wilton [Isobel Crawley of “Downton Abbey”]) and John Poole (played by Patrick Malahide [Balon Greyjoy of “Game of Thrones”]).

Within the plot are subplots: Barbara and John Poole are whites who disapprove of Matt who is black; Leanne is divorced from a cad but Leanne’s child by him is white and dislikes her stepfather Matt; Leanne was close to her grandfather Victor who is cold to his daughter Barbara Poole; Victor favors his nurse Hazel Betts over his own daughter and that nurse is the mother of another important character Kyle Betts.

Despite the large number of characters, the plot is well-constructed and not really confusing. More than anything the emotional content is what is important.

Well worth your time, in fact DO NOT MISS!