One of the characters in EastEnders will tell another Albert Square resident that she knows who killed Lucy Beale in an episode on BBC One and RTÉ One next week.
Warning: spoiler alert!
Lauren (Jacqueline Jossa) will continue putting together the pieces of Lucy's final hours.
However, she then tells Stacey (Lacey Turner) she knows the killer's identity - and Lauren is soon visited by the police.
