From 22-28 April on BBC iPlayer it’s all about dark comedy, as we take one last Guilt trip to Scotland with Mark Bonnar and Jamie Sives, and return for more mysteries lurking Inside No. 9 with Reece Shearsmith and Steve Pemberton.

There are also three fascinating documentaries, charting the lives of fashion icon Karl Lagerfeld, rock’n’roll icon Little Richard, and the amazing story of two women who fell in love in the Ravensbruck concentration camp in 1944.07452

Guilt

Jake and Max stand against a backdrop of Scottish hills and lakes, looking back towards the camera with concerned expressions.

Award-winning thriller, Guilt, returns for its third, and final outing as brothers Max and Jake find themselves back in Scotland where the welcome isn’t as warm as they’d hoped for.

Max is running a pub in Chicago with Jake but the business is floundering. After their money worries take an unexpected turn, the brothers are deported back to Edinburgh where enemies old and new cause them to seek ever more desperate solutions to their problems.

Inside No. 9

Steve Pemberton and Reece Shearsmith return alongside a host of stars for more darkly twisted comic tales, in their award-winning anthology series.

The eighth series begins with Mother’s Ruin, a story about East End villains Harry and Annie Blackwood – a pair who were rotten to the core and did some truly horrible things when they were alive. What secrets did they take to their grave? Their sons plan to find out.

The Mysterious Mr Lagerfeld

A look at the fashion icon that was Karl Lagerfeld, one of the most flamboyant and recognisable figures in fashion – and one of the most mysterious. His influence was immeasurable, from the Chanel catwalk to the high street – but how many people ever really knew the real Karl Lagerfeld?

Weaving investigations in the present with Lagerfeld’s biography – illustrated by illuminating and much unseen archive footage – this film shows his profound and lasting effect on those around him, including his beloved cat Choupette.

Little Richard: King and Queen of Rock ‘n’ Roll

Little Richard can stake a claim on having invented rock ‘n’ roll. A black artist who grew up in the segregated south of the United States, Richard Penniman broke down barriers and took 1950s America by storm. The Beatles and The Rolling Stones supported him and drew inspiration from his musicianship and stagecraft. He went on to influence artists as diverse as David Bowie, Elton John, Michael Jackson and Prince.

Yet Little Richard spent years feeling his contribution to music had been overlooked in favour of white rock ‘n’ roll stars like Elvis Presley and Pat Boone. On top of that, the inner conflict between his religious beliefs and the music style he pioneered – as well as his battles with his own sexuality – led him to quit rock ‘n’ roll not just once, but twice.

Featuring interviewees including Ringo Starr, Keith Richards, Nile Rodgers and Big Freedia, alongside intimate contributions from friends, bandmates and the never-before-broadcast words of Little Richard himself, this is the story of a rollercoaster life, with musical highs and knuckle-biting lows, that makes the case for Richard being crowned king of rock ‘n’ roll.

Nelly and Nadine: Ravensbrück, 1944

Storyville documentary about a remarkable love story of two women who fell in love with each other in the Ravensbruck concentration camp. One of Nelly’s granddaughters opens up the family archive and discovers the true nature of her grandmother’s sexuality and why it was hidden by the family.

Murderville

Will Arnett stars as Terry Seattle, the eccentric senior detective of the town of Murderville, for this brilliant semi-improvised comedic murder mystery, based on the BBC comedy Murder in Successville. In each episode, a rotating cast of clueless celebrity guest stars including Kumail Nanjiani, Ken Jeong, Annie Murphy, and Sharon Stone, play the role of a rookie detective. However, the guests are not given a script beforehand and must improvise their way through the episode as they try to solve who the true killer is.

Our Changing Planet

Our Changing Planet returns for a second series to examine how the Earth’s most vulnerable habitats and the animals living there will evolve in the coming years. In this series, we journey to California, Greenland, the Maldives, Brazil, Kenya and Cambodia, exploring the ecological issues threatening the planet.

Deborah James: Bowelbabe in Her Own Words

From living with incurable bowel cancer, to receiving a damehood, to her untimely death, this archive-based feature documentary for Storyville details the extraordinary last five years of cancer campaigner Deborah James’s life.

Known by many as her online persona Bowelbabe, the former deputy head teacher amassed a huge social media following. Filmed with Deborah in the last months of her life, with access to her personal and family archive, she talks frankly about her diagnosis and treatment, and shares many personal moments. The film is told by Deborah herself whilst she dances and records what living with bowel cancer was really like for her and those closest to her.

Out of the Shadows: Born from Rape

Campaigner Sammy Woodhouse uncovers heart-breaking stories of love and pain from mothers and the children born from rape in this powerful new documentary.

What happens when your child was born out of an act of sexual violence? And how does it feel to discover that you were born that way? Sammy Woodhouse was a victim of the Rotherham grooming scandal. She was just 15 when she became pregnant from rape, and has spent many years trying to come to terms with her own feelings about having a child as a result of her abuse.

In a new BBC News and BBC 100 Women documentary, Sammy goes on a journey to meet other mothers and the children born from rape whose stories have stayed hidden for years, now speaking out for the first time.

Gossip Girl

New Year, new start and there’s a new Queen of Constance. But the new Julien doesn’t plan on doing anything about it. Returning for its second season, this extension of the pop culture classic takes us back to the Upper East Side.

Stacey Dooley: Ready for War?

Stacey Dooley follows a group of Ukrainian civilians as they arrive in the UK to begin five weeks of intensive army training with exclusive and unprecedented access to the British Army’s training mission.