3404: Mercedes is quizzed over Lynsey's death

Following an anonymous tip off, Mercedes finds herself facing some tough questions from the police about Lynsey's murder. Will she get anyone to corroborate her alibi?

Meanwhile, Jen insists that her relationship with Tilly is nothing more than 'no strings' fun - but will Tilly be able to accept that?

Elsewhere, Ste is missing his kids. He grows increasingly frustrated when it seems that Doug doesn't understand him and turns to an old acquaintance for comfort. At the same time, Doug has a shock when his parents turn up unexpectedly!

Also today, Mitzeee is struggling to cope with prison life, while Brendan is horrified to learn that Declan is in deep trouble.

Writers: Jessica Lea and Chris Gill
Director: Laura Smith