Emily Blunt is good. Her title role in The Girl On The Train as a sad, damaged soul is the kind that often nets awards nominations. She manages the role well, avoiding the temptation to overact.

But it is the storytellers—novelist Paula Hawkins, screenwriter Erin Cressida Wilson and director Tate Taylor—who make TGOTT a compelling, suspenseful mystery. The unfolding of the film’s set-up is accomplished smoothly, revealing characters and situations in a manner that grabs one’s attention and doesn’t let go.

When Rachel (Blunt) mentions her vivid imagination in an opening voiceover, it’s a clue that what is seen through her eyes may not be accurate. Factor in the alcoholism that rules her life and she becomes an unreliable source for certain plot elements. She does, however, have voyeuristic tendencies, so she is highly observant.

Two other key female characters, Anna (Rebecca Ferguson) and Megan (Haley Bennett), are women that Rachel has watched from her seat the train that takes commuters into Manhattan from the suburbs. Anna is married to Rachel’s ex-husband, Tom (Justin Theroux). Megan is Anna’s neighbor who helps care for Anna and Tom’s baby.

Rachel often sees Megan embracing her husband on the upstairs deck of their home located not far from the tracks. She also sees her ex and his new wife—the woman he had an affair with while married to Rachel.

One day she notices Megan is on the deck with a different man. Soon after, Megan disappears. Rachel’s recollections may be of help to the lead police investigator (Allison Janney) determine what happened but the time in question is a blackout period due to her excessive drinking.

Among the talented cast are two favorite former sitcom stars. Martha (Lisa Kudrow of Friends fame) is a woman from Rachel and Tom’s past. Cathy (Laura Prepon of That 70s Show) gives Rachel a place to stay when her drinking problem is at its worst.

You may be able to solve this movie’s puzzle before the big reveal, but a lingering question remains unanswered after the end titles: is Emily Blunt’s performance awardworthy? Director Tate Taylor’s 2011 film The Help resulted in three acting Oscar nominations and a win for Octavia Spencer.

Blunt is a solid pro. Depending on what comes down the cinematic track during the next few weeks, that girl on that train may not be on the inside looking out come awards season.