The girl on the train in a London suburb in July 5th to September 10th, 2013, certainly has a vivid imagination. At a momentary stop every day as she goes to work, she sees into the yards and houses of adjacent rowhouses, and conjures up complex life stories to fit the people she sees there. none of whom are faithful to their spouses.
There are endless twists and turns and multiple murders as she actually gets to meet those same people, none of whom could remotely be considered normal.
The intermittent relapses into alcoholism with blackouts and hangovers is very well discribed. A foreign-borne psychotherapist becomes a target of the psychological phenomenon of transference and succumbs to a sexual relationship with a patient.
It makes no sense to test the paternity of an early pregnancy of a deceased woman when the illicit relationship had begun less than two months prior to her murder.
There are some other inconsistencies as well, such as: «…you can taste the carbon monoxide rising from the street below. » Carbon monoxide is odourless and tasteless.
Readers, to have any hope of keeping the characters straight, need to pay close attention to the dates, times and characters of each of the short chapters as there are frequent time shifts, but only three narrators, always talking in the first person singular tense.
Not my favourite genre, but very well written.
3/5
Thanks, Vera.
The Passionate Reader 
the glaring inconsistencies would ruin it for me
LikeLike