1942. Sadie Gault is eigh­teen and liv­ing with her par­ents amid the hor­rors of the Kraków Ghet­to dur­ing World War II. When the Nazis liq­ui­date the ghet­to, Sadie and her preg­nant moth­er are forced to seek refuge in the per­ilous sew­ers beneath the city. One day Sadie looks up through a grate and sees a girl about her own age buy­ing flowers.

Ella Stepanek is an afflu­ent Pol­ish girl liv­ing a life of rel­a­tive ease with her step­moth­er, who has devel­oped close alliances with the occu­py­ing Ger­mans. Scorned by her friends and long­ing for her fiancé, who has gone off to war, Ella wan­ders Kraków rest­less­ly. While on an errand in the mar­ket, she catch­es a glimpse of some­thing mov­ing beneath a grate in the street. Upon clos­er inspec­tion, she real­izes it’s a girl hiding.

Ella begins to aid Sadie and the two become close, but as the dan­gers of the war wors­en, their lives are set on a col­li­sion course that will test them in the face of over­whelm­ing odds. Inspired by har­row­ing true sto­ries, The Woman with the Blue Star is an emo­tion­al tes­ta­ment to the pow­er of friend­ship and the extra­or­di­nary strength of the human will to survive.