If you liked "Beside the Sea" you might also want to try these book suggestions. Readers of "Beside the Sea" recommend:

 

Metropole by Ferenc Karinthy - the reader is swept along as though trying to escape an oppressive atmosphere

 

Prince Rupert's Teardrop by Lisa Glass - equally distressing, but thought-provoking subject matter

 

When we were Romans by Matthew Kneale - for the portrayal of children in the care of a mother with mental illness

 

We need to talk about Kevin by Lionel Shriver - for the theme of mother/child relationship

 

Breathing Underwater by  Marie Darrieussecq - for a drama unfolding at the seaside

 

The Road by Cormac McCarthy - for a similar sense of gloom

 

Lamb by Bernard MacLaverty - a similar bleak, poignant and compelling read

 

Room by Emma Donoghue - two major themes in common with Beside the Sea: someone alienated from the world they live in and a mother's desire to protect her children from harm.