The Guest S1E1 1 September 2025 on BBC One

On Monday 1 September 2025, BBC One broadcasts The Guest!

Season 1 Episode 1 Episode Summary

The upcoming episode of “The Guest” on BBC One promises to be an emotional rollercoaster. This episode centers around Ria, a cleaner who finds herself in an unexpected situation when she begins working for Fran, a mysterious businesswoman. Their relationship starts off as a simple employer-employee dynamic, but it quickly evolves into an unlikely friendship.

As Ria gets to know Fran, she finds herself drawn to Fran’s confidence and charm. Fran offers Ria advice that seems to come from a place of wisdom and experience. However, this guidance takes a dark turn, leading to a tragic event that alters Ria’s life in ways she never anticipated. The episode explores themes of friendship, trust, and the consequences of choices made in moments of vulnerability.

Viewers can expect powerful performances and a gripping storyline that delves into how one person’s influence can dramatically change another’s life. The tension builds as Ria navigates her new reality, leaving audiences eager to see how her story unfolds. This episode of “The Guest” is sure to keep everyone on the edge of their seats.

What Time is the Episode On?

The episode of The Guest will be broadcast on September 1 2025 on BBC One at 9:00 PM.

Is the Episode New?

The episode of The Guest is all new!

The Guest Cast & Stars

Main Cast

Episode Videos & Previews

Watch The Guest Online

Watch the show online

The Guest Series Information

When a cleaner is hired by a wealthy businesswoman, her life changes forever as their initial friendship threatens to become a manipulative, psychological game of cat and mouse.