East Kilbride Rep Theatre Club

A comically sinister study of the tensions in an Edinburgh tenement, where the cleaning of the common stair is always a matter of contention among the residents. A psychological whodunit.

Old Mrs Mackie has always been in charge of her stair, the communal stairwell she shares with inhabitants like tough single-mum Kay and brittle young couple Lisa and Brian.

And then there's dodgy Bobby who just gets on everyone's nerves!