Shetland series 8 episode 3: Is murder victim Ellen Quinn the secret sister of Ruth Calder?

Shetland episode 2 ending: What does Ellen’s tattoo mean, and is Ruth Calder coming back?

Shetland on BBC One: Questions we have after watching episode 1, as Ashley Jensen made her debut as Ruth Calder

OPINION: No one can replace Perez in Shetland, but Toff and Ruth Calder are the duo we didn’t know we needed!