Confused by her powerful connection to Becky, Sasha digs deeper into her life and death. Meanwhile, Nancy clings to a cherished keepsake.

Strange occurrences make Sasha fear that something's wrong with her heart. Ben and Nancy work through their pain over losing Becky.

Believing her disturbing impulses are a message from Becky, Sasha hatches a risky plan to get answers. Nancy experiences worrying symptoms.

Sasha's fixation on what happened the night Becky died leads her to several suspects -- and stunning revelations. Elliot opens up about his anguish.

When her growing turmoil pushes away the people she loves, Sasha looks to a stranger for guidance. Ben and Nancy have a devastating heart-to-heart.

Elliot helps Sasha uncover what triggered Becky's behavioral changes. Yvonne digs deeper into the Annex. Nancy makes a troubling discovery.

Danger lurks all around during the Annex's spring equinox party as Sasha takes extreme measures to free herself from the darkness that plagued Becky.

Nancy fights to protect Sasha and preserve her bond with Becky, even as she confronts horrifying truths about what led to her daughter's death.

Teetering on the edge of life and death, Sasha struggles to hold on to who she is, while her desperate friends turn to an unexpected source for help.