Claire is targeted by the serial killer while investigating the death of a jogger. Dan is rocked by news of Zoe's engagement to Kristof. Amber confronts her fears with help from an unexpected friend.

Zoe and Dan investigate two brothers for the murder of their parents. Stephen joins a new strike force hunting for the serial killer.

When a dead body is found in a beach pool, Dan and Zoe uncover a web of adultery and deception. Zoe struggles with her feelings for Dan and her engagement to Kristof.