- Home
- Festivals & events
- Mortal Sin
Mortal Sin

Monday, 18 August 2025 - Saturday, 6 September 2025
About this event
Mortal Sin is a bold, heartfelt, and sharply witty exploration of what it means to grow up different in an Ireland where the Church controls everything from the classroom to confession.
Through rapid-fire monologues, character switches and flashes of fantasy, Colm and Peggy paint a vivid portrait of their world, from Sunday mass to Audrey Hepburn.
Blending satire, nostalgia, and righteous teenage frustration, Mortal Sin is ultimately a celebration of friendship - a small but defiant stand against the silence and shame that shaped a generation. Colm and Peggy stick it to the man... well, Sister Assumpta anyway.
Mon-Sat at 1pm (doors open at 12.50pm)
Tickets: Low-price Mon/Tues €10, Wed/Thurs €12, Fri/Sat €15.
- The ComplexThings to see & doTheatre & events venues
- The Seamus Ennis Arts CentreThings to see & doTheatre & events venues
- Viking TheatreThings to see & doTheatre & events venues
- Comedy at The InternationalThings to see & doBar & pubs
- Samuel Beckett TheatreThings to see & doTheatre & events venues
- Cautionary Tales - TallaghtFestivals & eventsLive music & gigs
Tue, 16 Sep - Wed, 17 Sep
The Civic Theatre
- Paw Patrol Live! 'The Great Pirate Adventure'Festivals & eventsLive music & gigs
Fri, 12 Sep - Sun, 14 Sep
Bord Gáis Energy Theatre
- Melissa Hamilton's Ballet Stars GalaFestivals & eventsLive music & gigs
Wed, 17 Sep - Thu, 18 Sep
Bord Gáis Energy Theatre
- Here & Now - The Steps MusicalFestivals & eventsLive music & gigs
Tue, 23 Sep - Sat, 4 Oct
Bord Gáis Energy Theatre
- Fiddler on the RoofFestivals & eventsLive music & gigs
Tue, 7 Oct - Sat, 18 Oct
Bord Gáis Energy Theatre
- Friends! The Musical ParodyFestivals & eventsLive music & gigs
Sun, 21 Sep - Thu, 25 Sep
Bord Gáis Energy Theatre