"The Icecream Girls" TV mini series Episode 1 quick review

What is it with ITV and seaside town thrillers? First "Broadchurch" now, this miniseries. I am hooked already. I'm a sucker for a juicy flashback.
The novel (by Dorothy Koomson) must be a good read. The recreation of 1995 was well done. Jodhi May expertly plays the tortured Poppy. Not sure about Lorraine Burrough's Serena character. The drama is only a three parter ...easy-peasy, viewers.