Sergio Chamy is a small man with large glasses and a big heart. For three months he has been a widower and, although he has three children and five grandchildren living nearby, he’s struggling. He needs something. Then he sees a newspaper ad offering temporary employment to someone aged 80 or older. He follows it up – a detective agency wants a mole, someone to go undercover, to live in a care home and to check that the mother of a client is being properly cared for.

Sergio is an unlikely secret agent and struggles with the technology, such as making a call on a mobile phone and using it to film. He has a camera hidden inside his glasses, but he drops and breaks them. Even so, once placed inside the ‘objective’ as a resident of the care home, he’s pretty good – as we see, since the care home has agreed the filmmakers can film there, ostensibly for a documentary about life in care homes in Chile.