diff --git a/demo.md b/demo.md
new file mode 100644
index 0000000..3adfdb9
--- /dev/null
+++ b/demo.md
@@ -0,0 +1,23 @@
+## Demo script:
+
+- ERC-4337 compatible Smart Contract wallet
+- Unique feature: gasless off-chain txs with instant finality enabled by HTLC technology, as used in Bitcoin Lightning. Funds can be moved in and out of the off-chain payment system without any on-chain txs!
+- Setup required:
+  - on-chain: wallet owners must designate an Intermediary in their SC wallet
+  - off-chain: wallet owners and Intermediary must sign-off on some amount of wallet funds designated for off-chain txs
+  - run in-browser client(s) to interact with SC wallet and peers
+  - `Explain browser tab setup with Alice(left), Irene(middle), Bob(right)`
+- How it works:
+  - on-chain txs are 2/2 multi-sig (user + intermediary)
+  - `Show on-chain tx from Alice to Metamask account`
+  - user can remove intermediary at any point to claim full ownership of wallet/funds
+  - `Point to 'Eject' button on UI`
+  - off-chain payments involve a pair of atomic payments: (1) payer-->intermediary, (2) intermediary-->payee
+  - off-chain payments require users to be connected to the same intermediary (or have a path to each other through multiple intermediaries)
+  - `Show off-chain payment Alice to Bob`
+- Cross-chain payments
+  - works for off-chain payments only
+  - Alice on Network1 can pay Bob on Network2 if the following conditions are met:
+    - Alice has sufficient funds on Network1
+    - Bob has designated enough of his Network2 funds for Intermediary
+    - Intermediary has an exchange rate to convert between Network1 funds and Network2 funds