A Woman Alone 1987 on netflix

Irena, a postal delivery worker, is struggling with inadequate housing, a drunk neighbor who wants to take her place, and a heartless boss, knowing that the whole day at work, she is leaving her young son. But the worst is the loneliness, exacerbated by her single mother status. She meets a crippled pensioner Jacek, who appears to be the key to her happiness, but tragedy continues to strike.