A synopsis for the upcoming episode reads: “Reeling from Martha’s decision, Humphrey focuses his attention on an inexplicable crime.
“A house has been burgled and all forensic evidence points to one suspect only. The only problem is that this suspect was locked up by Kelby in the station’s police cell.
“With the arrival of the suspect’s hard-nosed lawyer, the team is under pressure to get results but with Humphrey distracted, it falls to Esther to take the lead on this investigation and crack the case.
“Meanwhile, despite her mother’s protestations, Martha remains firm, however painful it might be.”
Beyond Paradise continues Fridays on BBC One from 8pm.